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OS/2 Help File
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2000-04-02
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ΓòÉΓòÉΓòÉ 1. Introduction ΓòÉΓòÉΓòÉ
World Clock is a highly configurable clock with Coordinated Universal Time
(UTC), Universal Date and Time (UDT), Internet time ("Swatch beat"), Daylight
Savings Time, Calendar, Stopwatch, Alarm, Program launcher, Latitudes and
Longitudes, Sunrise/sunset and day length for Warp.
Time can be displayed for 1 to 9 cities from a provided list of 700 cities. You
can add new city, change properties for selected city or delete city.
World Clock has included fully qualified TZ (Time Zone) environment variable
and coordinates (latitude and longitude) for all cities in the list. You can
set TZ environment variable for your CONFIG.SYS, using properties for your
city.
World Clock has Language support for English, Croatian, German, Polish and
Swedish. If you want to add your Language support visit my site and download
Translation tool (translat.zip).
Features:
Various date and time display formats (ISO 8601 and country-specific)
Display for each selected city:
country, time, date, coordinates (latitude and longitude), sunrise,
sunset and day length for current date
Universal Time (UTC) difference, Standard and Daylight Savings time
descriptor, TZ environment variable
Horizontal or vertical arrangement of selected cities, normal or compact
display
Minimized or banner view (display only cities and time)
Universal date & time (UDT), Coordinated Universal Time (UTC), Internet
time ("Swatch beat") in title bar
World time (Standard time in all Time zones) with World map
Calculate distance between two selected locations on the World map
Calendar for current month/year
Calculate the TZ environment variable using City properties (all cities
in the list have included TZ environment variable)
Selectable position, size, font and fontsize
Alarm and Program launcher for each city
Stopwatch
Add new cities (e.g your own if not in the list), or change city
properties
Related topics:
How to get help
History
Installation
World Clock
View
Translation tool
Glossary
ΓòÉΓòÉΓòÉ 1.1. How to get help ΓòÉΓòÉΓòÉ
Status line
Most of windows and dialogs in World Clock have status line in the bottom
of window (except World Time window - status line is in the Title bar).
If you move pointer over some control (button, checkbox, radio button,
list, entry field ...), you will see short description of action you can
perform if you select this control.
Manual
Detailed explanation and instruction about World Clock can be found in
this manual. Colors and styles used in manual:
Bold - title, important information, button or other control to be
selected
Blue - link to related topic in this manual
Red - warning, caution
Contacting the author
If you need more help, and can't find it here, or you think some
important information is missing in this manual, contact me.
ΓòÉΓòÉΓòÉ 1.2. History ΓòÉΓòÉΓòÉ
Version 1.11 (2000-04-04):
CROATIAN Language support
GERMAN Language support
POLISH Language support
SWEDISH Language support
New World maps
Changed Banner and Minimized view
150 new cities
Version 1.10 (1999-12-18):
World map
Coordinates (longitude, latitude) for all cities
Display sunrise, sunset and day length for selected cities
Calculate distance between selected cities or locations in the world
Settings notebook
Enable or disable error and warning messages
150 new cities
Version 1.01 (1999-10-23):
Universal date & time
Date with note in Calendar is displayed with asterisk (*)
Display cities in city list sorted by City, Country, or Country, City.
Display all cities or only cities in user's Time Zone
Dialog with all cities is closed after city is selected
Error checking for all values. If program can not find one of them in
CLOCK.INI, default values are loaded.
Corrected date display for December and display for year 2000 in Calendar
(leap year!)
Stopwatch was accidentally removed form PopUp menu - it's back now
Under some environment (Warp3 with FP35 and FP38, Warp4 with FP10), World
Clock was not able to find CONFIG.SYS and TZ variable - fixed
Version 1.00 (1999-10-10):
DSTswitch to World Clock Interface
New date and time display formats (ISO 8601 Standard)
Calendar for current month/year
Corrected settings for TZ environment variable
Added TZ environment variable for all cities
Fixed bugs while running under Object Rexx
Improved Install/UnInstall program
Version 0.98 (1999-08-28):
Set TZ environment variable using City properties
Improved Install/UnInstall program
Version 0.97 (1999-07-30):
Banner display
World Time (Standard time in all Time zones)
Universal time (UTC) and Internet time ("Swatch beat") in title bar
Countdown (show remaining time for Alarm execution)
Corrected Launch for DOS programs
While Message box is on the screen, clock is running
Rearranged Cities window - easier changing of cities and city properties
Improved Install/UnInstall program
Version 0.96 - fix 1 (1999-06-18):
Fixed bug in version 0.96 (12-hour display)
Version 0.96 (1999-06-15):
New Install/UnInstall program
Documentation in INF format
Version 0.95 (1999-04-26):
Horizontal or vertical, normal or compact display
Daylight Savings time
Minimized view
Selectable position, size, font and fontsize
Alarm and Program launcher for each city
Version 0.90 (1999-03-26):
Initial release
ΓòÉΓòÉΓòÉ 2. Installation ΓòÉΓòÉΓòÉ
REXX MUST BE INSTALLED ON YOUR SYSTEM TO RUN WORLD CLOCK AND INSTALL PROGRAM.
Installation program (Install.exe) enables you to:
Install World Clock to selected drive / directory. If you have previous
version of World Clock (1.10) installed, you can use existing settings
(Selected cities, alarms, programs to launch and notes in calendar),
ReInstall World Clock after you copied/moved files to other
drive/directory and refresh existing values in USER (OS2.INI) and object
on Desktop,
UnInstall World Clock - remove specific values from USER (OS2.INI) and
destroy objects on Desktop.
Files in archive clock111.zip:
File name Description
Install.exe Install/UnInstall program required!
INSTALL.INI Install/UnInstall - configuration file required!
Clock.exe World Clock - program required!
CLOCK.INI World Clock - configuration file required!
ENGLISH.INI World Clock - ENGLISH language file required!
CROATIAN.INI World Clock - CROATIAN language file
GERMAN.INI World Clock - GERMAN language file
POLISH.INI World Clock - POLISH language file
SWEDISH.INI World Clock - SWEDISH language file
World0.met World map
World1.met World map
World2.met World map
World3.met World map
FastIni.dll Library for fast access to INI files recommended
English.inf World Clock - English manual
English.ipf World Clock - source file for English manual
Swedish.inf World Clock - Swedish manual
DSTsWClk.exe DSTswitch to World Clock Interface.
Install.ico Install/UnInstall icon
Clock.ico World Clock - icon
Folder1.ico World Clock folder - icon
Folder2.ico World Clock folder - icon
ReadEng.1st Latest Information about World Clock (English)
ReadSwe.1st Latest Information about World Clock (Swedish)
file_id.diz World Clock - short description
Unzip files from archive clock111.zip to empty directory, start
Install/UnInstall program (Install.exe) and select action: Install or
UnInstall.
Note: if you try to run World Clock program (Clock.exe) before installation,
Install/UnInstall program will start.
DO NOT unzip archive and start Install program in ROOT DIRECTORY!
Related topics:
Install
UnInstall
Default settings
ΓòÉΓòÉΓòÉ 2.1. Install ΓòÉΓòÉΓòÉ
After you pressed Install button, you will see Copyright notice, License
agreement and Disclaimer. Read this carefuly and press I agree button if you
want to install World Clock.
Install procedure will do following:
1. add World Clock's specific values in USER (OS2.INI) file,
2. create World Clock's folder and programs objects on Desktop,
3. write default values to World Clock's INI file (CLOCK.INI),
4. use selected Cities, Alarms, Launcher and Calendar settings from previous
version (if you have version 1.10 installed).
Note: if you want to use settings from previous version (1.10) DO NOT
UNINSTALL PREVIOUS VERSION before you install version 1.11. After you
installed World Clock 1.11, you can uninstall World Clock 1.10. You can
also keep World Clock 1.10 on your computer and run both versions.
You can install World Clock:
to suggested directory (C:\Clock111),
to current directory - where you started Install program (press Current
button),
to other drive/directory (press Other button, then select
drive/directory),
to new directory (enter name for new directory - Install program will
create new directory and copy files to this directory).
Note: If you selected current directory as target directory for
installation and World Clock is already installed in this
directory, current settings in CLOCK.INI file will be OVERWRITTEN
with default settings.
Install program can create only ONE directory - for example: you can
create c:\Newdir, but not c:\Newdir1\Newdir2.
DO NOT select ROOT DIRECTORY as target directory!
If Install program find files in directory where you want to install
World Clock, they will be OVERWRITTEN.
After Install procedure is finished, and Start World Clock on exit checkbox is
selected, when you press Exit button, World Clock will start.
If you copied World Clock to new drive/directory, start Install/UnInstall
program again, and select Install. Select Current directory and select Use
existing settings checkbox. Program will write new values in USER (OS2.INI)
file, and refresh objects on Desktop.
Related topics:
UnInstall
Default settings
Select (other) city
ΓòÉΓòÉΓòÉ 2.2. UnInstall ΓòÉΓòÉΓòÉ
If you don't like World Clock and want to remove it, start Install/UnInstall
program and select UnInstall. When finished, delete all files in directory
where you installed World Clock.
Warning: Do not remove files without UnInstall procedure.
If you did it, destroy World Clock 1.11 folder and remove following values from
USER (OS2.INI) file, in Application ToolsByGoran:
WorldClock111WorkDir
WorldClock111INIfile
Related topics:
Install
ΓòÉΓòÉΓòÉ 3. World Clock ΓòÉΓòÉΓòÉ
When you start World Clock you will see selected cities with their time, date,
UTC difference (+hh:mm = eastern hemisphere, -hh:mm = western hemisphere) and
Time Zone descriptor - for Standard time or Daylight Savings time (DST). If
city has DST, there is a small circle after DST descriptor. In title bar is
displayed UDT, UTC,and/or Internet time ("Swatch beat").
To open PopUp menu, move mouse pointer on World Clock's area and press second
mouse button (right-click by default).
If World Clock has focus, you can use keyboard for following actions:
M, Enter Open PopUp menu
F1, H Help - open World Clock's manual
X, Alt-F4 Exit World Clock
When Installation procedure finished and World Clock starts for first time,
you have to configure it. As World Clock gets the time and date from your
computer's internal clock, you first have to select your Time Zone and your
current Daylight Savings Time status. To do this, select YOUR CITY as FIRST
city of possible 9.
World Clock accepts one command-line parameter: d (Clock.exe d). Use this
parameter if you want to start World Clock with default settings.
Related topics:
View
PopUp menu
Settings
Cities
World Time
Stopwatch
Calendar
Glossary
ΓòÉΓòÉΓòÉ 4. View ΓòÉΓòÉΓòÉ
You can select how to display World Clock on the screen:
Standard view
This is default view. You can select display number (1 to 9) of 9
selected cities. For every city is displayed:
city and country, time zone descriptor, local time and date. You can
select vertical or horizontal orientation, normal or compact display,
etc.
Banner view
World Clock's height is reduced to title bar and width is set to screen
width. To set display in banner view, open Settings notebook and go to
"Other" page. You can select to display time for cities in standard view
(or for all 9 selected cities) and position of banner view on the screen
(top or bottom). Display is scrolled from right to left and time is
displayed in format hh:mm (without seconds).
Minimized view
World Clock's height is reduced to title bar. In title bar is displayed
city name and local time (for 1st city). You can select to display time
for all 9 selected cities - open Settings notebook, go to "Other" page
and check Change cities. Local time for every city will be displayed 10
seconds. Position of minimized view is the same as position of standard
view.
On exit, last selected view is remembered, and when you start World Clock
again, it will be displayed in last selected view.
Note: If you select banner or minimized view, CPU usage is lower than in
standard view.
ΓòÉΓòÉΓòÉ 5. PopUp menu ΓòÉΓòÉΓòÉ
To open PopUp menu, press second mouse button (right-click by default) on World
Clock's area, or press M or Enter (if World Clock has focus).
Items in PopUp menu are:
Display normal or compact, horizontal or vertical orientation
Position position on the screen (top left, top right, bottom left,
bottom right, center)
View standard (display city, country, time, date, UTC difference, TZ
descriptor), minimized or banner view (display only city and
time)
Settings open Settings notebook - configure World Clock
Cities view/change city's properties, add new/change/delete city, set
Alarm and Program launcher, set TZ environment variable
World Time display Standard time (no DST!) in ALL Time Zones, World Map
and distance between selected locations
Stopwatch start Stopwatch
Calendar display Calendar for current month/year
Universal display universal date & time (UDT, UTC, "Swatch beat")
Help show Help for World Clock
About Program and Author
Exit leave World Clock
If World Clock has focus, you can use keyboard to perform following actions:
M, Enter Open PopUp menu
F1, H Help - open World Clock's manual
X, Alt-F4 Exit World Clock
ΓòÉΓòÉΓòÉ 6. Settings ΓòÉΓòÉΓòÉ
To open Settings notebook, press second mouse button (right-click by default)
on World Clock area and select Settings in PopUp menu. All settings are grouped
in following pages in Settings notebook:
General Display, orientation, number of displayed cities, position,
size, free space on the screen
DateTime Date and time settings
System Enable or disable various messages, Set font, Set system clock
World World Time and World map settings, select Language
Other Settings for Banner and Minimized view, Stopwatch and
miscellaneous settings
When finished , press Save settings button, to write settings to CLOCK.INI. If
you want to reset changes, press Default button to use World Clock's standard
settings.
To configure display in Title bar, select Universal in PopUp menu and select
display to see in Title bar - UDT, UTC, "Swatch beat".
If you select Countdown checkbox in Alarm window, remaining time until alarm
for selected city will be displayed in Titlebar - hh:mm to (message) in
(selected city).
Related topics:
General
DateTime
Date settings
Time settings
System
World
Other
Default settings
Set font and size
ΓòÉΓòÉΓòÉ 6.1. General ΓòÉΓòÉΓòÉ
Display
Normal (city and country, time, UTC difference, TZ descriptor) or Compact
(city and country, time) display,
Horizontal (left to right) or Vertical (top to bottom) orientation,
Number of cities to display - 1 to 9
Position
Position on the screen (top left, top right, bottom left, bottom right or
center),
Size of city panel - width (200 to 400) and height (50 to 100) -
depending on selected Font type and size.
Free space
Set space between left, bottom, right, top screen border and World
Clock's border (between 0 and 25% of screen width or height). Use if you
want LaunchPad, WarpCenter or some other program to be always visible.
When finished, press Save settings button, to write settings to CLOCK.INI. If
you want to reset changes, press Default button to use standard settings.
Related topics:
Settings
Default settings
ΓòÉΓòÉΓòÉ 6.2. DateTime ΓòÉΓòÉΓòÉ
Date
Date display format - see Date settings for more details,
Select separator between year month and day - default is hyphen (-),
Display (or not) separator between year month and day,
Display (or not) day of week (Monday, Tuesday, Wednesday, Thursday,
Friday, Saturday, Sunday),
Display (or not) leading zeroes in date,
Time
Time display format - see Time settings for more details,
Display (or not) separator between hours minutes and seconds - separator
is colon (:),
Display (or not) time in 12-hour (am/pm) format,
Display (or not) difference between local time and UTC,
Display (or not) leading zeroes in time,
When finished, press Save settings button, to write settings to CLOCK.INI. If
you want to reset changes, press Default button to use standard settings.
Related topics:
Settings
Default settings
ΓòÉΓòÉΓòÉ 6.3. Date settings ΓòÉΓòÉΓòÉ
International Standard ISO 8601 is based on date format represented with the
largest units given first, i.e., from left to right the ranking is year, month,
week, day.
Representation of date is available in following formats, where 1999-09-14 is
sample date, hyphen(-) is default separator, comma(,) is decimal sign and
symbols are:
CC century
YY year
MM month
DD date
Www week designator and ordinal number of a calendar week within the
year
DDD ordinal number of a day within the year
D ordinal number of a day within calendar week (Monday = 1, ... Sunday
= 7)
MON name of a calendar month (1 = January, 2 = February, ... 12 =
December)
1. CCYY MM DD Complete representation - calendar year, ordinal
number of a calendar month within the calenday year
and ordinal number of a day within the calendar month
(1999-09-14)
2. CCYY MM Reduced precision - calendar year and ordinal number
of a calendar month within the calenday year
(1999-09)
3. CCYY Reduced precision - calendar year (1999)
4. MM DD Truncated representation - specific day of a month
(09-14)
5. MM Truncated representation - specific month (09)
6. DD Truncated representation - specific day (14)
7. CCYY DDD Complete representation - calendar year and ordinal
day of a year (1999-257)
8. DDD Truncated representation - ordinal day of a year only
(257)
9. CCYY Www D Complete representation - calendar year, ordinal
number of a week within the year and ordinal number
of a day within the week (1999-W38-2)
10. CCYY Www Reduced precission - calendar year and ordinal number
of a week within the year (1999-W38)
11. Www D Truncated representation - week and day of the
current year (W38-2)
12. Www Truncated representation - week of the current year
(W38)
13. D Truncated representation - day of the current week
(2)
14. DD MM CCYY Ordinal number of a day within the calendar month,
ordinal number of a calendar month within the
calenday year and calendar year (14-09-1999)
15. DD MON CCYY Ordinal number of a day within the calendar month,
name of a calendar month within the calenday year and
calendar year (14-Sep-1999)
16. MM DD CCYY Ordinal number of a calendar month within the
calendar year, ordinal number of a day within the
calendar month and calendar year (09-14-1999)
17. MON DD CCYY Name of a calendar month within the calenday year,
ordinal number of a day within the calendar month and
calendar year (Sep-14-1999)
Here are options in date display (example is for 1st date format - CCYY MM DD
ss):
Separator
If selected, date is displayed with separator between year, month and day
(1999-09-14) You can select separator (hyphen (-), dot (.), slash (/) or
space. If you unselect this checkbox, date is displayed without separator
between year, month and day (19990914)
Century and year (4-digit)
If selected, century and year is displayed (1999-09-14). If you unselect
this checkbox, year in current century is displayed (99-09-14).
Show day of week
If selected, day of week (Monday, Tuesday, ... Sunday) is displayed
before date, separated with comma (Tue, 1999-09-14)
Leading zeroes
If selected, months, days, weeks are displayed in 2-digit format.
Note: If you select display without separator, then hours and minutes are
displayed in 2-digit format (leading zeroes). Also, if you select
display without leading zeroes, separator is displayed. This is
required for readable display of time.
Formats 14, 15, 16 and 17, display without leading zeroes and using other
separator than hyphen are not recommended by International Standard ISO 8601,
but they are still in use in many countries.
ΓòÉΓòÉΓòÉ 6.4. Time settings ΓòÉΓòÉΓòÉ
International Standard ISO 8601 is based on the 24-hour timekeeping system.
Representation of time is available in following formats, where 20:42:36 is
sample time, colon(:) is default separator, comma(,) is decimal sign and
symbols are:
hh hours (represented by two digits from 00 to 23)
hh,h hours and decimal fraction of hour (represented by two digits,
separator and one digit in decimal fraction from 00,0 to 23,9)
mm minutes (represented by two digits from 00 to 59)
mm,m minutes and decimal fraction of minute (represented by two digits,
separator and one digit in decimal fraction from 00,0 to 59,9)
ss seconds (represented by two digits from 00 to 59)
1. hh mm ss Complete representation - hours, minutes and seconds
(20:42:36)
2. hh mm Reduced precision - hours and minutes (20:42)
3. hh Reduced precision - hours (20)
4. hh mm,m Decimal fractions - hours, minutes and decimal fraction of
the minute (20:42,6 - 36 seconds = 0,6 minutes)
5. hh,h Decimal fractions - hours and decimal fraction of the hour
(20,7 - 42 minutes = 0,7 hours)
6. mm ss Truncated representation - minutes and seconds of the hour
(42:36)
7. mm Truncated representation - minutes of the hour (42)
8. ss Truncated representation - seconds of the minute (36)
9. mm,m Truncated representation - minutes of the hour and decimal
fraction of the minute (42,6)
Here are options in time display (example is for 1st time format - hh mm ss):
Separator
If selected, time is displayed with separator between hours, minutes and
seconds (20:42:36) If you unselect this checkbox, time is displayed
without separator between hours, minutes and seconds (204236)
12-hour format
If selected, hours are converted (08:42:36pm)
Show UTC difference
If selected, difference between local time and UTC is displayed (20:42:36
+01:00 - for Central Europe)
Leading zeroes
If selected, hours and minutes are displayed in 2-digit format - seconds
are always displayed in 2-digit format.
Note: If you select display without separator, then hours and minutes are
displayed in 2-digit format (leading zeroes). Also, if you select
display without leading zeroes, separator is displayed. This is
required for readable display of time.
12-hour format and display without leading zeroes are not recommended by
International Standard ISO 8601, but they are still in use in many countries.
ΓòÉΓòÉΓòÉ 6.5. System ΓòÉΓòÉΓòÉ
Enable/disable messages
Missing TZ variable World Clock did not find SET TZ
environment variable in CONFIG.SYS.
Wrong TZ variable SET TZ= environment variable in
CONFIG.SYS is incomplete.
Different TZ variables SET TZ= environment variable in
CONFIG.SYS and values for 1st of 9
selected cities are different.
Error in CLOCK.INI Some values in configuration file
(CLOCK.INI) are wrong or missing.
Default values will be loaded.
New city selected One of 9 selected cites is selected
from the city list.
Alarm or Program is set Alarm or Program at specified time for
one of 9 selected cities is set.
World map not found World Clock did not find World map
(World.met).
Open Font Palette
To change World Clock's font, press Open Font Palette button, then drag
and drop font you want to use with World Clock on white rectangular with
Font name.
Set computer's system clock
Press Set computer's system clock button to open System clock, set date
and/or time, close System clock and press Refresh date and time to accept
changes.
When finished, press Save settings button, to write settings to CLOCK.INI. If
you want to reset changes, press Default button to use standard settings.
Related topics:
Settings
Default settings
ΓòÉΓòÉΓòÉ 6.6. World ΓòÉΓòÉΓòÉ
World Time
Position on the screen (top left, top right, bottom left, bottom right or
center),
Hide (or not) World Clock while World Time is displayed,
Show (or hide) World map when World Time is displayed,
Show (or hide) World map when World Time is displayed,
World Map
Select one of available World maps in the list to display with World
Clock
Language
Select Language support for World Clock (available: CROATIAN, ENGLISH,
GERMAN, POLISH and SWEDISH, default: ENGLISH).
Note: if you change Language support and save changes, exit World Clock
and start it again to accept changes.
When finished, press Save settings button, to write settings to CLOCK.INI. If
you want to reset changes, press Default button to use standard settings.
Related topics:
Settings
Default settings
ΓòÉΓòÉΓòÉ 6.7. Other ΓòÉΓòÉΓòÉ
Here are other World Clock's settings - Banner and Minimized view and
Stopwatch:
Banner
Position on the screen (top, bottom),
Show all 9 selected cities (or only cities displayed in World Clock)
Minimized
Change (or not) cities in minimized view every 10 seconds
Stopwatch
Position on the screen (top left, top right, bottom left, bottom right or
center),
Display time in Stop watch - seconds, 1/10 seconds, 1/100 seconds,
Miscellaneous
Set System clock to UTC - local time for cities will be calculated from
computer's time and (in most cases) local time for 1st city and
computer's system time will be different,
Display short names of months and days (3 characters),
Enable sound on Alarm message,
Enable sound on Note (in Calendar),
When finished, press Save settings button, to write settings to CLOCK.INI. If
you want to reset changes, press Default button to use standard settings.
Related topics:
Settings
Default settings
ΓòÉΓòÉΓòÉ 6.8. Default settings ΓòÉΓòÉΓòÉ
After you installed World Clock, default settings are written to CLOCK.INI
file. Default settings are:
General
Normal display (city, country, time, date, UTC difference, TZ descriptor)
Vertical orientation (top to bottom)
9 displayed cities
Position - top right of the screen
Width - 200, height - 50
Free space - 0 for all borders
DateTime
Date - complete representation with separator and leading zeroes
(CCYY-MM-DD)
Show day of week
Time - complete representation - 24-hour format with separator and
leading zeroes (hh:mm:ss)
Show difference between loacl time and UTC
System
Show all error, warning and info messages
Font - 9.WarpSans
World
World time position - top left of the screen
Don't hide World Clock while World Time is displayed
Show World map when World Time is displayed
Don't show cities in World map
Language - ENGLISH
Other
Banner position - top of the screen
Show all 9 cities in Banner
Change cities in minimized view every 10 seconds
Stopwatch position - top left of the screen
Stopwatch display - 1/100 secs
System clock is set to local time (not UTC)
Display short names of months and days (3 characters)
Play sound when Alarm message pops up
Play sound when Calendar note pops up
Display time in title bar (available in Universal window)
UTC (Coordinated Universal Time)
Note: Default settings are also written to CLOCK.INI file, if you start World
Clock with parameter d (Clock.exe d) or if you press Default button in
Setings notebook.
If some of values in CLOCK.INI are missing or wrong, program loads
default settings and writes them to CLOCK.INI. You can open Settings
notebook and change settings.
If one of 9 selected cities is missing, program loads UTC, Coordinated
Universal Time. If values for one of 9 selected cities are missing or
wrong, program loads values for UTC, Coordinated Universal Time. You
can select this city and write correct data.
ΓòÉΓòÉΓòÉ 6.9. Set font and size ΓòÉΓòÉΓòÉ
Size of city panel (width 200 and height 50) is configured for screen size 800
* 600 and font 9.WarpSans. Width range is between 200 and 380, and height range
is between 50 and 95.
If you changed font, try several combinations, until you get best view.
For example:
for font 10.Helv set size to 225 (width) and 50 (height),
for font 12.Helv set size to 300 (width) and 70 (height),
for font 14.Helv set size to 350 (width) and 70 (height).
Note: World time window is exception because of fixed window size. If you
select other font than 9.WarpSans, World Time will use font 8.Helvetica.
ΓòÉΓòÉΓòÉ 7. Cities ΓòÉΓòÉΓòÉ
To open Cities window, press second mouse button (right-click by default) on
World Clock area and select Cities in PopUp menu. Here is a list of all 9
cities with their properties:
Sunrise, Sunset, Day length for current date - in hh:mm (24-hour format)
in local Standard time. For DST add one hour,
Coordinates - Latitude (89┬░59'S-89┬░59'N) and Longitude
(179┬░59'W-179┬░59'E)
Universal Time (UTC) difference, Daylight Savings Time (DST) - start date
and end date, Time Zone descriptor - for Standard and Summer (DST) time,
Alarm: - time, text, options,
Program launcher: - time, program, directory, parameters.
To see distance between 9 selected cities press Distance button. Select one of
cities in the list to see distance to other cities.
Distance is displayed in kilometers (km), miles (mi = 1.609 km) or nautical
miles (nm = 1.852 km).
To view 9 selected cities in the world map, or to calculate distance between
two locations in the world, open World Time window.
To add new city to list, change one of 9 selected cities (select new), select
city you want to change and press the Select new city from list or change
properties for City, Country button (where City and Country is selected one).
For example: if you want to change 3rd city,select 3rd city in the list area
and press the Select new city from list or change properties for City, Country
button.
New window with list of all cities will open.
Note: If one of 9 selected cities is missing, program loads UTC, Coordinated
Universal Time.
If values for one of 9 selected cities are missing or wrong, program
loads values for UTC, Coordinated Universal Time. You can later select
this city and write correct data.
If there are missing or wrong data for city, you will see error
message.
Related topics:
All citiess
Select (other) city
Add new city / Change properties
Alarm
Program launcher
World Time
Set TZ environment variable
Glossary
ΓòÉΓòÉΓòÉ 7.1. All cities ΓòÉΓòÉΓòÉ
On the left side of this window is list of all available cities displayed in
alphabetical order - City, Country. If you want to see cities in alphabetical
order - Country, City, press Display - Country, City button.
If you have TZ environment variable (SET TZ=...) in CONFIG.SYS file, checkbox
Only cities in my Time Zone is enabled. When you select this checkbox, new list
is displayed containing cities with same TZ environment variable as in
CONFIG.SYS. If you don't have TZ environment variable in CONFIG.SYS, or if
there is no matching city, this checkbox will be disabled.
You can scroll up and down until you find city you want. For fast move press
first character of city (or country) name and first city (or country) which
name begins with pressed character will be selected. To do this city list must
have focus (black text on white background).
You can change following properties for selected city:
Coordinates - Latitude (89┬░59' Nouth to 89┬░59' North) and Longitude
(179┬░59' West to 179┬░59' East),
Universal Time (UTC) difference (time zone),
Time Zone descriptor - for Standard and Summer (DST) time,
Daylight Savings Time (DST) begin and end (week, day of week, month,
time) - as you change one of them, TZ environment variable is changed
too. This option is available only if Daylight Savings time checkbox is
selected.
TZ environment variable is changed when you change some of values. You
can also change TZ environment variable manually. To accept changes, and
adjust values, press Refresh button.
If you want to set properties for selected city using TZ environmet
variable from CONFIG.SYS, press CONFIG.SYS. button. If you don't have TZ
environment variable in CONFIG.SYS, this button is disabled.
If you want to use calculated TZ environment variable in CONFIG.SYS,
press Clipboard button. Then you can use your favorite CONFIG.SYS editor
and paste TZ environment variable.
Don't write SET TZ= statement in entry field with TZ variable. Program
will add this statement and prepare fully qualified TZ variable.
Note: if you changed TZ environment variable in CONFIG.SYS, restart your
computer to accept changes.
When finished press Save City, Country button where City and Country are name
and coutry of selected city.
If you press New button, you can enter data for new city - City, Country,
Standard and Daylight Savings time values are deleted, other values are set to
defaults.
If you press Delete button, selected city will be removed from list.
Note: You can't delete any of selected cities. To do this, first unselect
city (select other).
You can't never delete UTC, Coordinated Universal time, because it is
used as default city, if any of 9 selected cities is missing.
if you change city name and/or country, it will be saved as new city
and settings for old (selected) city will not be changed.
BE CAREFUL: Program will write changes without warning.
Related topics
Select (other) city
Add new city / Change properties
Set TZ environment variable
Glossary
ΓòÉΓòÉΓòÉ 7.2. Select (other) city ΓòÉΓòÉΓòÉ
After installation, you have to select 9 cities you want to show in World
Clock. When you start World Clock for first time UTC, Coordinated Universal
Time is defined as default city. As World Clock gets the time and date from
your computer's internal clock you first have to select your Time Zone and your
current Daylight Savings Time status. To do this select YOUR CITY as FIRST city
of possible 9 in correct Time Zone. If you are using DSTswitch to World Clock
Interface. (if you have DSTswitch installed), you can select any city in any
Time Zone as 1st city.
How to select other city (one of 9 selected): step-by-step instructions
1. Open city window (select Cities from PopUp menu).
2. Select city you want to change (between 1st and 9th) in city list.
3. Press the Select new city from list or change properties for City,
Country button (where City and Country is selected one).
4. In new window you will see list of all cities, sorted in ascending order,
with first city selected. On the right side are city properties (city
name, country, UTC difference - Time Zone, Daylight Savings Time start
and end).
5. To select other city:
Scroll list up and down until you find your city (select checkbox Only
cities in my Time Zone if you want select one of cities in your Time
Zone). As you scroll list, on the button below list you will see text
Select City, Country as city x, where City, Country is city name and
country of currently selected city, and x is number of city you want to
show in World Clock (between 1 and 9).
When you find city you want, press this button. Selected city will be
displayed in World Clock.
Repeat this procedure for all 9 cities.
Warning: if existing city has some Alarm or Program launcher settings, and you
selected other city, Alarm and Program launcher settings will be deleted.
Related topics
All cities
Add new city / Change properties
Set TZ environment variable
Glossary
ΓòÉΓòÉΓòÉ 7.3. Alarm ΓòÉΓòÉΓòÉ
Here you can set an Alarm for each city from of the displayed cities. World
Clock will show Alarm message at the local time of the selected city.
Example:
If you want to make two phone calls, one to New York City at 12:00 local
time and another one to London also at 12:00 local time, simply set the
alarm for New York to 12:00 and for London also to 12:00 as described in
the following lines.
World Clock will then start the first alarm at 12:00 GMT (London Time =
GMT) and the second alarm at 17:00 GMT (New York Time = GMT + 5 hours).
To set Alarm, set time for hours and minutes. Write the message you want to
show - it will appear in a Message box on screen at the selected time. If you
don't write any message, program will write Alarm! message.
Every day
Starts the alarm everyday at the same time. If you don't select the Every
day checkbox, the Alarm settings will be deleted after execution. If
WorldClock is not running at the specific time, it will execute the Alarm
the next time it is started at the specific time.
Countdown
Remaining time until Alarm execution will be displayed in Titlebar -
hh:mm to (message) in (selected city). Only 5 times can be tracked at
once and they will be changed in Titlebar every 10 seconds.
TIP: you can always set Alarm for ALL 9 cities, even if some of them are not
displayed.
ΓòÉΓòÉΓòÉ 7.4. Program launcher ΓòÉΓòÉΓòÉ
To set Program launcher, set the time and select the program (or press Find
button to find it via standard FileOpen dialog - you can select *.exe or *.cmd
files), the working directory and the parameters. Options are:
run minimized
run in background
run DOS program
close window on exit - for VIO programs Don't select this option for PM
Applications - they probably won't run
Every day - starts the chosen program every day at the same time. If you
don't select the Every day checkbox, the Launcher settings will be
deleted after execution.
Note: - if WorldClock is not running at the specific time, it will execute
the Program the next time it is started at the specific time,
- DOS programs are always running in window session.
TIP: you can always set Launcher for ALL 9 cities, even if some of them are
not displayed.
ΓòÉΓòÉΓòÉ 8. Add new city / Change properties ΓòÉΓòÉΓòÉ
How to add new city or change city properties: step-by-step instructions
1. Open city window (select Cities from PopUp menu).
2. Press Select new city from list or change properties for City, Country
button.
3. In new window you will see list of all cities, sorted in ascending order,
with first city selected. On the right side are city properties (city
name, country, UTC difference - Time Zone, Daylight Savings Time start
and end).
4. To change city properties:
Scroll list up and down until you find your city (select checkbox Only
cities in my Time Zone if you want select one of cities in your Time
Zone). As you scroll list, on the right side are displayed properties
for selected city.
When you find city you want, select correct values (city name, country,
latitude and longitude, UTC difference - Time Zone, Daylight Savings Time
start and end) - press up and down arrows on spin buttons. When finished,
and press Save changes button.
Warning: Program will write changes without warning.
5. Here are two ways how to add new city:
a. Press New button.
Enter city name and country, select correct values (city name,
country, latitude and longitude, UTC difference - Time Zone,
Daylight Savings Time start and end) - press up and down arrows on
spin buttons. When finished, and press Save changes button.
b. Select city in same Time Zone as city you want to add, change city
name and/or country and press Save changes button.
Example:
If you want to add Manchester, England select London, England (they
have same properties); change city name to Manchester, set latitude
and longitude and press Save changes button. Program will save
Manchester, England as new city in CLOCK.INI. Properties for London,
England WILL NOT BE CHANGED.
When you save changes, they are also written to file ADDCITY.INI in World
Clock's working directory. It would be nice if you send me this file by email,
so I can update city list with correct values.
Related topics
All cities
Select (other) city
Set TZ environment variable
Glossary
ΓòÉΓòÉΓòÉ 9. Set TZ environment variable ΓòÉΓòÉΓòÉ
The TZ (time zone) environment variable in CONFIG.SYS controls the
interpretation of the hardware clock. This variable is used by some
applications.
To enable all options in World Clock (select only cities in your Time Zone, run
DSTswitch to World Clock interface ...), fully qualified TZ environment
variable must be in CONFIG.SYS (not only TZ descriptor(s) and UTC difference).
Note: if you are in United States or Canada, TZ environment variable in your
CONFIG.SYS probably looks like: SET TZ=EST5EDT (example is for USA
Eastern). If you want to keep this variable (valid for some programs,
not for World Clock) in CONFIG.SYS, disable TZ related messages in
Settings notebook (System page).
To set TZ environment variable for selected city, select correct values (city
name, country, UTC difference - Time Zone, Daylight Savings Time start and
end) - press up and down arrows on spin buttons. As you change values, TZ
string will be changed.
If you change the TZ variable manually, complete variable is:
SET TZ=STD[+|-]nDST[,DSTm,DSTw,DSTd,DSTt,STDm,STDw,STDd,STDt,shift]
STD Standard Time Zone Descriptor (3 characters - it may contain spaces,
but first must be character)
n Difference to UTC (GMT) in Hours (positive are west of 0 degree
length, negative are east of 0 degree length)
DST Daylight Savings Descriptor (3 characters - it may contain spaces,
but first must be character)
DSTm Month in which Daylight Savings Time starts (1=January, 2=February
... , 12=December)
DSTw Week in which Daylight Savings Time starts (positive - from the
beginning of the month, negative - from the end of the month)
DSTd Day at which Daylight Savings Time starts (0=Sunday, 1=Monday ...,
6=Saturday).
DSTt Time of Daylight Savings Time start in seconds
STDm Month in which Daylight Savings Time ends (1=January, 2=February ...
, 12=December)
STDw Week in which Daylight Savings Time ends (positive - from the
beginning of the month, negative - from the end of the month)
STDd Day at which Daylight Savings Time ends (0=Sunday, 1=Monday ...,
6=Saturday).
STDt Time of Daylight Savings Time end in seconds
shift Size of the Time shift in seconds
Don't write SET TZ= statement in entry field with TZ variable. Program will
add this statement and prepare fully qualified TZ variable.
Note: if you changed TZ environment variable in CONFIG.SYS, restart your
computer to accept changes.
Related topics:
Time Zones
Glossary
ΓòÉΓòÉΓòÉ 10. World Time ΓòÉΓòÉΓòÉ
Here you can see Standard time (NOT Daylight Savings Time) for all Time Zones
from West (UTC -12 hours) to East (UTC +12 hours). If you move mouse pointer
over time displayed in Time Zone, in Title bar is displayed information about
this Time Zone (Military code, UTC +/- hours, countries and regions in this
Time Zone). Background colors in Time Zones are: blue=night, white=day, light
blue=twilight. Night, day and twilight are displayed for 1st city's latitude.
When you press Position button, you can select position of World Time window on
the screen - top left, top right, bottom left, bottom right or center (this
option is also available in the Settings notebook - World page). You can also
Show map or Hide map.
World map
When you select Show World map checkbox in Settings, or if you press Show map
button, World map will be displayed (If World Clock does not find file
World*.met in working directory, checkbox in Settings and button in this window
are disabled). Some features are available only if World map is displayed:
Coordinates
When you move cursor over World map, in lower left corner are displayed
coordinates of location on the map (Latitude in degrees and minutes from
180┬░ W(est) to 180┬░ E(ast) and Longitude in degrees and minutes from 90┬░
N(orth) to 90┬░ S(outh)).
Distance
You can calculate distance between two selected locations in the world.
To do this, move cursor to the first location, press and HOLD 1st mouse
button (left mouse button by default) down, move cursor to the second
location, and release 1st mouse button. That's all!
In status line you will see following information:
1. First location's coordinates: Latitude 180┬░W(est) - 180┬░E(ast) and
Longitude 90┬░N(orth) - 90┬░S(outh)
2. Second location's coordinates:Latitude 180┬░W(est) - 180┬░E(ast) and
Longitude 90┬░N(orth) - 90┬░S(outh)
3. Distance in kilometers (km), miles (mi) and nautical miles (nm) - 1
mi = 1.609 km, 1 nm = 1.852 km.
PopUp Menu
When you press 2nd mouse button (right mouse button by default), PopUp
menu with following items is displayed:
Position Position of this window on the screen (TopLeft,
TopRight, BottomLeft, BottomRight and Center)
Hide map Hide World map (you can also press Hide map button)
Show cities Show position of 9 selected cities in World Clock on
the map. To see distance between 9 selected cities,
open Cities window, and press Distance button.
Hide cities Hide 9 selected cities in World Clock on the map
Help Show help about World Time (you can also press Help
button)
Close Close World Time and return to World Clock (you can
also press Close button)
Related topics:
Create your own World map
Settings
Time Zones
Glossary
Limitations
ΓòÉΓòÉΓòÉ 10.1. Create your own World map ΓòÉΓòÉΓòÉ
You can also create your own map and add it to the list of available World
maps. To do this, follow these rules:
Image type OS/2 metafile
Image size 721 (width) * 361 (height)
Map projection Equidistant Cylindrical Projection (a linaer scaling of
longitudes and latitudes - the meridians and the parallels
are equally spaced. It is also known as the Plate CarВe
projection. All meridians and parallels are straight
lines).
Map area 180┬░ East (left border)
180┬░ West (right border)
90┬░ North (top border)
90┬░ South (bottom border)
When finished, add your creation to the list of available World maps:
1. Exit World Clock (if it is running) and open CLOCK.INI with INI editor.
2. Select Application (Section) WorldMap. There are 4 Keys (World0.met to
World3.met).
3. Add new Key, where Key name. is name of your file (World4.met for
example), and Value is description.
4. Close CLOCK.INI, start World Clock, open Settings notebook and select
World page.
5. Select your map from the list, press Save settings button and close
Settings notebook.
6. Open PopUp menu and select World menu item. You should see your World
map.
Note: After you added new World map, I would appreciate if you send me new
MET file, so I can include this file in next version of World Clock.
ΓòÉΓòÉΓòÉ 11. Stopwatch ΓòÉΓòÉΓòÉ
If you press second mouse button (right-click by default) on Stopwatch area,
you can select position of Stopwatch, and display of elapsed time in seconds,
1/10 secs or 1/100 secs (also available in Settings notebook).
Note: when you start Stopwatch, Close button is disbled until you stop it
(press Stop button to enable Close button).
Related topics:
Settings
ΓòÉΓòÉΓòÉ 12. Calendar ΓòÉΓòÉΓòÉ
Calendar displays current month and year. For every day you can write short
note. If day already has note, it is displayed with asterisk after date (11*
for example).
To select other month/year, use buttons:
1st button Select previous year and same month
2nd button Select previous month and same year
3rd button Select next month and same year
4th button Select next year and same month
If you want to edit/view note for date, select it (use arrow keys) and
double-click on selected date (or press Enter key).
Then you can enter your note. Press Save note button to save note for selected
date (visible in title bar), or press Delete note button to delete note for
selected date.
Note for current date is displayed when World Clock starts.
ΓòÉΓòÉΓòÉ 13. Universal date & time ΓòÉΓòÉΓòÉ
The Gregorian calendar can be displayed in many different ways: does 10/09/99
mean 10th of September 99 or 9th of October 99. Or, does 3:00 mean 3am, 3pm,
3pm UTC or 3 in any other time base? You have to know what format the time/date
has been written in, English or American etc., and common mistakes can easily
happen.
Here are three ways how to display date & time identical in all countries
and/or time zones:
Coordinated Universal Time (UTC)
is kept on the Greenwich meridian (longitude zero) and times given in UTC
are almost always in terms of a 24-hour clock.
Universal Date & Time (UDT)
is a metric based system promoted by Universal Time Organisation that is
co-ordinated on UTC. The day is divided in to any metric number that is
required, normally a thousand units or a million units. The day number of
the year and the year can be displayed.
Swatch beat - Internet time
is inaugurated by Swatch in late 1998. Day is divided into 1000 "beats"
and new meridian in is created in Biel, Switzerland, home of Swatch as
Biel Mean Time (BMT). A day in Internet Time begins at midnight BMT (@000
Swatch Beats) (BMT = Central European Wintertime = CET = UTC + 1).
You can select any (or all) of this times to display in Title bar, when you
select Universal item in PopUp menu and check one of following:
UTD to display Universal Date & Time
UTC to display Coordinated Universal Time (UTC)
Swatch to display Swatch beat - Internet time
To display selected time(s) in Title bar, press Display button. UTC will be
displayed without seconds; UTD and Internet time ("Swatch beat") will be
displayed as whole numbers (without fraction of unit).
Note: when you start World Clock, selected time(s) will be displayed in Title
bar in next full minute (i.e. 00 sec)
Related topics:
Glossary
ΓòÉΓòÉΓòÉ 14. Translation tool ΓòÉΓòÉΓòÉ
Language support for World Clock (buttons text, messages, frames text ...) is
stored in Language INI files (ENGLISH.INI, CROATIAN.INI, etc.) and source of
help file (this file - English.inf) is file English.ipf.
If you want to add your Language support visit my site and download
Translation tool (translat.zip).
To create new Language INI file:
1. Select source language (one of languages in the list).
2. Press New language! button, to create new language file. SOURCE LANGUAGE
will be copied to new language file.
3. Enter language name, comment, your name and email adress (REQUIRED!).
Then press OK - start translation button.
4. Sections (pages in Notebook) are: Menu, Hint, Message, Button, Frame and
Help. Overwrite text with your text.
5. When finished, select your language in program and try it.
To change existing Language INI file:
1. Select your language (as source language and your language).
2. Change comment, your name and email adress if you want, then press OK -
start translation button.
3. Sections (pages in Notebook) are: Menu, Hint, Message, Button, Frame and
Help. Overwrite existing text with your text - press Write changes button
after EVERY CHANGE.
4. When finished, select your language in INI editor and check changes.
Important!
Press Write changes button after EVERY CHANGE to save changes. If you don't
press this button and go to next item, changes WILL BE LOST!
When you create new Language INI file, program will write new Key to file
CLOCK.INI, Language, where:
- Key name is name of new language
- Key value is "English.inf" - it is default help file for World Clock.
In section (Page) Help are stored titles of topics in English.inf and they are
used as parameter when you press Help button in World Clock. You should
translate this section only if you want to translate source help file
(English.ipf). Then items in Help section should be identical as translated
titles in new IPF/INF file.
Note: After you added new Language support to World Clock, I would appreciate
if you send me new INI file, so I can include this file in next version
of World Clock.
ΓòÉΓòÉΓòÉ 15. Translate help file ΓòÉΓòÉΓòÉ
To translate help file you need IPF compiler.
If you want to translate English.ipf to your language, after you finished
translation, make changes in Application "Language" in file CLOCK.INI.
For example:
when you translated ENGLISH to MYLANG (where MYLANG is your Language),
MYLANG.INI file is created. When you translated English.ipf to Mylang.ipf
and compile Mylang.ipf, Mylang.inf file is created.
Edit in CLOCK.INI:
change in Application Language, Key MYLANG, Value English.inf to
Mylang.inf.
Be sure you also translated Help section in MYLANG.INI. In section (Page) Help
are stored titles of topics help and they are used as parameter when you press
Help button in World Clock. Translate this section only when you translated
source help file (English.ipf).
Note: After you translated help file, I would appreciate if you send me new
IPF/INF file, so I can include this file in next version of World
Clock.
ΓòÉΓòÉΓòÉ 16. DSTswitch to World Clock Interface ΓòÉΓòÉΓòÉ
DSTswitch is an automatic time changing utility for OS/2 developed by Mark
Eckstein. DSTswitch enables you to synchronize the time between computers and
automatically adjust system clock when Standard time changes to Daylight
Savings time and vice versa.
Difference between World Clock and DSTswitch is:
World Clock calculates UTC (and local times for cities 2-9) from
properties for 1st city (i.e. 1st city MUST be in your Time Zone for
correct dispay of time and date). World Clock does not use values from TZ
environment variable in CONFIG.SYS.
When Standard time changes to Daylight Savings time (and Daylight Savings
to Standard), World clock does NOT adjust computer's system clock (you
will just see message box). You have to adjust system clock manually.
DSTswitch calculates UTC from TZ environment variable in CONFIG.SYS.
When Standard time changes to Daylight Savings time (and Daylight Savings
to Standard), DSTswitch automatically adjusts system clock.
In this archive (clock111.zip) is included DSTswitch to World Clock Interface
(DSTsWClk.exe).
If you have DSTswitch installed (and running), you can use calculated UTC from
DSTswitch and select city from any Time Zone as 1st city. To do this, first
start DSTsWClk.exe, then start World Clock. Now you can select 1st city in any
Time Zone, and time and date for all 9 cities will be displayed correctly.
Note: If you exit DSTswitch and/or DSTswitch to World Clock Interface
(DSTsWClk.EXE) while World Clock is running, UTC (and local times for
cities 2-9) will be again calculated from DSTswitch (within next minute
or two).
Also, if you start DSTswitch and DSTswitch to World Clock Interface
(DSTsWClk.EXE) while World Clock is running, UTC (and local times for
cities 2-9) will be calculated from properties for 1st city (within
next minute or two).
If you selected 1st city from different Time Zone (and do not use
DSTswitch to World Clock Interface), local time and date for all 9
cities will be wrong.
For more information about DSTswitch visit http://www.mark-eckstein.de
ΓòÉΓòÉΓòÉ 17. Time Zones ΓòÉΓòÉΓòÉ
There are 25 integer World Time Zones from -12 through 0 to +12. Each one is
15┬░ of Longitude as measured East and West from the Prime Meridian of the World
at Greenwich, England.
The armed forces give letters to time zones, where Z(ulu) = Zero meridian.
Other letters/words are used for: A to M go eastwards and N to Y go westwards.
The letter J is omitted.
There is no international standard that specifies descriptors for civil time
zones (sometimes the same descriptor is used for different time zones). Each
country is free to define its own names and declare ist own compliance to time
zones (some countries are 15, 30, and 45 minutes off of UTC).
Some of Time Zone descriptors - for standard (ST) and summer (DST) time are:
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ΓöéCode ΓöéUTC+/- ΓöéST ΓöéDST ΓöéExample Γöé
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ΓöéY(ankee) Γöé-12:00 Γöé - Γöé - ΓöéPacific Ocean nations Γöé
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ΓöéX(ray) Γöé-11:00 Γöé - Γöé - ΓöéPacific Ocean nations Γöé
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ΓöéW(hisky) Γöé-10:00 ΓöéTHT ΓöéTHT ΓöéTahiti Γöé
Γöé Γöé ΓöéHST ΓöéHST ΓöéHawaii Γöé
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ΓöéV(ictor) Γöé-09:00 ΓöéYST ΓöéYDT ΓöéUSA Alaska, Yukon Γöé
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ΓöéU(niform) Γöé-08:00 ΓöéPST ΓöéPDT ΓöéUSA Pacific Γöé
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ΓöéT(ango) Γöé-07:00 ΓöéMST ΓöéMDT ΓöéMataveri, USA Mountain Γöé
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ΓöéS(ierra) Γöé-06:00 ΓöéCST ΓöéCDT ΓöéArchipelago of Columbus, USA Central Γöé
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ΓöéR(omeo) Γöé-05:00 ΓöéEST ΓöéEDT ΓöéUSA Eastern, Ecuador Γöé
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ΓöéQ(Qebec) Γöé-04:00 ΓöéWST ΓöéWDT ΓöéWestern Brazil Γöé
Γöé Γöé ΓöéAST ΓöéADT ΓöéAndes, Antilles, Asuncion, USA Atlantic Γöé
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ΓöéP(apa) Γöé-03:00 ΓöéWGT ΓöéWGT ΓöéWestern Greenland Γöé
Γöé Γöé ΓöéEST ΓöéEDT ΓöéEastern South America Γöé
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ΓöéO(scar) Γöé-02:00 ΓöéMGT ΓöéMGT ΓöéMiddle Greenland Γöé
Γöé Γöé ΓöéFST ΓöéFDT ΓöéFernando de Noronha Γöé
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ΓöéN(ovember)Γöé-01:00 ΓöéEGT ΓöéEGT ΓöéEastern Greenland Γöé
Γöé Γöé ΓöéACT ΓöéACT ΓöéAzores and Canaries Γöé
Γöé Γöé ΓöéAAT ΓöéAAT ΓöéAtlantic Africa Γöé
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ΓöéZ(ulu) Γöé+00:00 ΓöéBST ΓöéBDT ΓöéGreat Britain Γöé
Γöé Γöé ΓöéIST ΓöéIDT ΓöéIreland Γöé
Γöé Γöé ΓöéWAT ΓöéWAT ΓöéWestern Africa Γöé
Γöé Γöé ΓöéWET ΓöéWDT ΓöéWestern Europe Γöé
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ΓöéA(lpha) Γöé+01:00 ΓöéCAT ΓöéCAT ΓöéCentral Africa Γöé
Γöé Γöé ΓöéCET ΓöéCDT ΓöéCentral Europe Γöé
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ΓöéB(ravo) Γöé+02:00 ΓöéEET ΓöéEEST ΓöéEastern Europe Γöé
Γöé Γöé ΓöéIST ΓöéIDT ΓöéIsrael Γöé
Γöé Γöé ΓöéSAT ΓöéSAT ΓöéSouth Africa Γöé
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ΓöéC(harlie) Γöé+03:00 ΓöéAST ΓöéADT ΓöéArabia Γöé
Γöé Γöé ΓöéEAT ΓöéEAT ΓöéEastern Africa Γöé
Γöé Γöé ΓöéMSK ΓöéMSD ΓöéMoscow Γöé
Γö£ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
Γöé - Γöé+03:30 ΓöéIST ΓöéIDT ΓöéIran Γöé
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ΓöéD(elta) Γöé+04:00 ΓöéBSK ΓöéBSD ΓöéBaku Γöé
Γöé Γöé ΓöéGST ΓöéGDT ΓöéGulf Γöé
Γöé Γöé ΓöéKSK ΓöéKSD ΓöéKuybyshev Γöé
Γöé Γöé ΓöéSMT ΓöéSMST ΓöéSeychelles and Mascarene Time Γöé
Γö£ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
Γöé - Γöé+04:30 ΓöéAFT ΓöéAFT ΓöéAfghanistan Γöé
Γö£ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
ΓöéE(cho) Γöé+05:00 ΓöéASK ΓöéASD ΓöéAshkhabad Γöé
Γöé Γöé ΓöéESK ΓöéESD ΓöéYekaterinburg Γöé
Γöé Γöé ΓöéPKT ΓöéPKT ΓöéPakistan Γöé
Γö£ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
Γöé - Γöé+05:30 ΓöéIST ΓöéIST ΓöéIndia Γöé
Γö£ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
ΓöéF(oxtrot) Γöé+06:00 ΓöéBGT ΓöéBGT ΓöéBengal, Bangladesh Γöé
Γöé Γöé ΓöéNSK ΓöéNSD ΓöéNovosibirsk Γöé
Γöé Γöé ΓöéOSK ΓöéOSD ΓöéOmsk Γöé
Γöé Γöé ΓöéTSK ΓöéTSD ΓöéTashkent Γöé
Γö£ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
Γöé - Γöé+06:30 ΓöéBMT ΓöéBMT ΓöéBurma Γöé
Γöé Γöé ΓöéCCT ΓöéCCT ΓöéCocos Γöé
Γö£ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
ΓöéG(olf) Γöé+07:00 ΓöéICT ΓöéICT ΓöéIndochina Γöé
Γöé Γöé ΓöéJVT ΓöéJVT ΓöéJava Γöé
Γöé Γöé ΓöéTSK ΓöéTSD ΓöéTomsk Γöé
Γö£ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
ΓöéH(otel) Γöé+08:00 ΓöéBNT ΓöéBNT ΓöéBorneo, Brunei Γöé
Γöé Γöé ΓöéCST ΓöéCDT ΓöéChina Γöé
Γöé Γöé ΓöéISK ΓöéISD ΓöéIrkutsk Γöé
Γöé Γöé ΓöéPST ΓöéPDT ΓöéPhilippines Γöé
Γöé Γöé ΓöéSGT ΓöéSGT ΓöéSingapore Γöé
Γöé Γöé ΓöéUST ΓöéUDT ΓöéUlan Bator Γöé
Γöé Γöé ΓöéWST ΓöéWST ΓöéWestern Australia Γöé
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ΓöéI(ndia) Γöé+09:00 ΓöéJST ΓöéJST ΓöéJapan Γöé
Γöé Γöé ΓöéKST ΓöéKDT ΓöéKorea Γöé
Γöé Γöé ΓöéMLT ΓöéMLT ΓöéMoluccas Γöé
Γöé Γöé ΓöéPLT ΓöéPLT ΓöéPalau Γöé
Γöé Γöé ΓöéYSK ΓöéYSD ΓöéYakutsk Γöé
Γöé Γöé ΓöéCST ΓöéCST ΓöéCentral Australia Γöé
Γö£ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
ΓöéK(ilo) Γöé+10:00 ΓöéEST ΓöéEST ΓöéEastern Australia Γöé
Γöé Γöé ΓöéGST ΓöéGST ΓöéGuam Γöé
Γöé Γöé ΓöéVSK ΓöéVSD ΓöéVladivostok Γöé
Γö£ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
ΓöéL(ima) Γöé+11:00 ΓöéGSK ΓöéGSD ΓöéMagadan Γöé
Γöé Γöé ΓöéNCT ΓöéNCD ΓöéNew Caledonia Γöé
Γö£ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
Γöé - Γöé+11:30 ΓöéNRT ΓöéNRT ΓöéNorfolk Γöé
Γö£ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
ΓöéM(ike) Γöé+12:00 ΓöéNZT ΓöéNZD ΓöéNew Zealand Γöé
Γöé Γöé ΓöéPSK ΓöéPSD ΓöéPetropavlovsk-Kamchatski Γöé
ΓööΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö┤ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö┤ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö┤ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö┤ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÿ
Related topics:
Set TZ environment variable
Glossary
ΓòÉΓòÉΓòÉ 18. Glossary ΓòÉΓòÉΓòÉ
Following information was compiled from various sources available freely on the
Internet. Credits are fully given to the known authors of any material that was
used. To find more information on the Internet, enter any of following term(s)
in any search engine.
ISO 8601
International Standard ISO 8601 (first edition 1988-06-15) defines
formats for numerical representation of dates, times and date/time
combinations, local time and Coordinated Universal Time (UTC).
All date and time formats are represented with the largest units given
first, from left to right the ranking is year, month, week, day, hour,
minute, second. All values are fixed width, with leading zeros used as
required.
Complete representation of calendar date shall be a single 8-digits
numeric data in format CCYYMMDD, where CCYY represents a calendar year,
MM the ordinal number of calendar month within a calendar year and DD the
ordinal number of a day within the calendar month. When required, hyphen
(-) shall be used as separator. The space character shall not be used in
the representation.
Complete representation of time shall be a single 6-digits numeric data
in format hhmmss, where hh represents hours, mm minutes and ss seconds.
When required, colon (:) shall be used as separator. The space character
shall not be used in the representation.
The ISO 8601 standard in PDF format can be found on
ftp://ftp.qsl.net/pub/g1smd/8601v03.pdf
Time Zone (TZ)
There are 25 integer World Time Zones from -12 through 0 to +12. Each one
is 15┬░ of Longitude as measured East and West from the Prime Meridian of
the World at Greenwich, England. More about Time Zones and how to set TZ
environment variable
Daylight Saving Time (DST)
Daylight Saving Time (also called "summer time") is a method of advancing
clocks in a global manner, in order to artificially expand the daylight
hours. In general, clocks are set forward one hour in Spring and are set
back one hour in Fall.
There are no international standards for "saving time". Each country is
free to define its own rules.
Greenwich Mean Time (GMT)
Common standard for time calculations related to Greenwich, England.
Greenwich Mean Time is a widely used historical term, but one that has
been used in several ways. Because of the ambiguity, its use is no longer
recommended in technical contexts.
Coordinated Universal Time (UTC)
The times are often given in "Universal Time" (abbreviated UTC) which is
sometimes referred to "Greenwich Mean Time" (abbreviated GMT). The two
terms are often used loosely to refer to time kept on the Greenwich
meridian (longitude zero). Times given in UTC are almost always given in
terms of a 24-hour clock.
In the most common civil usage, UT refers to a time scale called
"Coordinated Universal Time" (abbreviated UTC), which is the basis for
the worldwide system of civil time. This time scale is kept by time
laboratories around the world, and is determined using highly precise
atomic clocks.
Universal Date & Time (UDT)
Universal Time Organisation is promoting a metric based system that is
co-ordinated on UTC. The day is divided in to any metric number that is
required, normally a thousand units or a million units. The day number of
the year and the year can be displayed, thus giving it a date format.
They have developed a system called Universal Date & Time (UDT) that can
be used internationally and mean only one thing.
Swatch beat - Internet time
Internet Time (inaugurated by Swatch in late 1998) represents a new
global concept of time. The Swatch Beat, the new unit of time means the
following:
- Day is divided into 1000 "beats". One Swatch beat is the equivalent of
86.4 seconds (1 minute 26.4 seconds). That means that 12 noon is the
equivalent of @500 Swatch beats.
- A new meridian in is created in Biel, Switzerland, home of Swatch.
Biel Mean Time (BMT) will be the universal reference for Internet Time. A
day in Internet Time begins at midnight BMT (@000 Swatch Beats). BMT =
Central European Wintertime = CET = UTC + 1 hour.
Latitude and longitude
Latitude gives the location of a point north or south of the equator. It
is measured in angles ranging from 0┬░ at the equator to 90┬░ at the poles.
Longitude gives the location of a point east or west of a north-south
line called the prime meridian, is measured in angles ranging from 0┬░ at
the prime meridian to 180┬░ at the International Date Line.
Each degree of latitude and longitude is divided into 60 minutes, and
each minute divided into 60 seconds, thereby allowing the assignment of a
precise numerical location to any point on earth.
The east-west lines of latitude and the north-south line of longitude
intersect at right angles to form a grid.
Sun rise and set
Sunrise is the instant in the morning under ideal meteorological
conditions, with standard refraction of the sun's rays, when the upper
edge of the sun's disk is coincident with an ideal horizon.
Sunset is the instant in the evening under ideal meteorological
conditions, with standard refraction of the sun's rays, when the upper
edge of the sun's disk is coincident with an ideal horizon.
Atmospheric conditions are assumed to be average, and the location is in
a level region on the Earth's surface.
Note: Here may be incorrect data (UTC difference, DST begin/end, Time Zones,
Time Zone descriptors and/or coordinates for some cities).
I would appreciate if you send corrections
ΓòÉΓòÉΓòÉ 19. Limitations ΓòÉΓòÉΓòÉ
CAUTION:
DO NOT EDIT CLOCK.INI WITH ANY INI EDITOR WHILE WORLD CLOCK IS RUNNING !!!
Bugs in OS/2 and Rexx
Under some environment (Warp3 with FP35 and FP38, Warp4 with FP10 and
FP11) there are bugs in OS/2 and/or Rexx. Known problems (until now) are:
time calculation and display on the World map for cities in western
hemisphere may be wrong. If you have problem like this, check selected
city (sometimes is longidude displayed in East), select correct values
and save changes.
Time delay in changes
World Clock is reading system date & time from your computer's internal
clock once in a minute (at 00 sec) to reduce CPU usage. Some changes you
made (selected time display in Title bar, start or end DSTswitch to World
Clock Interface ...) will be visible in next minute. If you can't wait so
long, exit World Clock and start it again.
"Classic" vs. Object Rexx
World Clock can run under "Classic" or Object Rexx. If you have Object
Rexx installed, performance is significantly slower (loading time is
about 3x longer, etc.)
FastIni.dll
FastIni.dll is library for fast acces to OS/2 INI files. As World Clock
stores all information in CLOCK.INI file (settings, cities ...), it is
recommended to use this file (copy it to directory in LIBPATH statement
in CONFIG.SYS, or keep it in World Clock's directory). World Clock can
run without this library, but performance will be slower.
Calculating date / time
World Clock calculates UTC (and local dates/times for cities 2-9) from
properties for 1st city (it MUST be in your Time Zone for correct date &
time display for other cities). If you are using DSTswitch to World Clock
Interface. (and if you have DSTswitch installed) you can select any city
in any Time Zone as 1st city. To do this, first start DSTswitch, then
DSTsWClk.exe and finally World Clock. Now you can select 1st city in any
Time Zone, and time and date for all 9 cities will be displayed
correctly.
Set System clock to UTC
If you set computer's system clock to UTC, local time for cities will be
calculated from computer's time and (in most cases) local time for 1st
city and computer's system time will be different.
OS/2 does not use TZ envrionment variable and computer's time is always
used when writing datestamp and timestamp for files, etc. If other
programs on your computer use TZ environment variable, they'll probably
calculate wrong local time, if you set system clock to UTC.
If you work with somebody in different Time Zone, maybe you want to
synchronize computer's clocks.
Daylight Savings time
When Standard time changes to Daylight Savings time (and Daylight Savings
to Standard), World clock does NOT adjust computer's system clock (you
will just see message box). You have to adjust system clock manually, or
use some utility to do this (like DSTswitch).
Distances in World map
Formulas for distance calculation are using spherical coordinates on the
earth. They don't take into account the squashed nature of the earth (it
is kind of fat around the equator, as a result of the centrifugal force
it gets from spinning on its axis). So that will throw a little error
into these calculations. Size of World map is 721 (width) * 361 (height)
pixels (1┬░ = 2 pixels) and the smallest distance between two location you
can select is 1 pixel or 30 minutes (about 55-56 km).
Sun rise and set
The times of rise and set cannot be precisely computed, because the
actual times depend on unpredictable atmospheric conditions that affect
the amount of refraction at the horizon.
There are some errors in calculating the times of sunrise/sunset at high
latitudes (> 66.5┬░). These errors are due to the algorithms used and if
there is latitude for city higher than 66.5┬░, sunrise/sunset is
calculated for latitude 66.5┬░.
Possible errors
Here may be incorrect data (UTC difference, DST begin/end, Time Zones,
Time Zone descriptors and/or coordinates) for some cities/countries. I
would appreciate if you send corrections.
All World Clock's settings are saved in file CLOCK.INI. If some of then are
missing or wrong, program loads default settings and writes them to CLOCK.INI.
ΓòÉΓòÉΓòÉ 20. Troubleshooting ΓòÉΓòÉΓòÉ
CAUTION:
DO NOT EDIT CLOCK.INI WITH ANY INI EDITOR WHILE WORLD CLOCK IS RUNNING !!!
If you find bug in program, or if DrRexx screen pop up with SYNTAX ERROR
message, try this:
1. READ THE MANUAL please - maybe you find some useful information :-)
2. If World Clock is still running, select Settings from PopUp menu, and
press Default settings button, exit program and start it again.
3. If World Clock is not running, start World Clock with parameter D
(Clock.exe D). World Clock will load default settings.
4. Edit CLOCK.INI with INI editor and delete following Applications
(sections):
Settings
SelCity
Alarm
Launch
Then start World Clock with parameter D (Clock.exe D) again - program
will load default settings. Your settings will be lost, but program
should work.
DO NOT delete World Clock's related Keys and Values in USER (OS2.INI)
file (Application: ToolsByGoran) !
5. Visit my Home page to see if there is any bug fix or update.
6. Send me a message with following information:
a. OS/2 version (and FixPak) you are using,
b. Rexx ("classic" or Object Rexx),
c. World Clock version you are using,
d. Description of bug or error (and SYNTAX ERROR message from DrRexx
dialog).
I will try to help you and correct error.
Related topics:
Install
Default settings
ΓòÉΓòÉΓòÉ 21. Copyright and contact ΓòÉΓòÉΓòÉ
Author Goran Ivankovic
Address Ulica Josipa Poduje 8
HR-52100 Pula
Croatia
email duga1@pu.tel.hr
Home page http://redrival.com/os2util/
World Clock is free software but it is not public domain. The author retains
all copyright to the application and all files within it.
You may use World Clock yourself and you may distribute it to others so long
as all files are left unchanged. You may not distribute World Clock in any way
which leads to your making a profit from it. This means that you can only
charge enough to cover the costs of media, postage etc. involved in
distribution. Also you may not use it as an incentive to buy something else.
If you are in any doubt you should contact the author.
The author's permission must be obtained before World Clock is included on a
magazine disc and P.D. libraries. You should, as a matter of courtesy, inform
the author when you are planning to distribute the application and send one
copy of magazine disc to the author.
The author makes no representations about the accuracy or suitability of this
material for any purpose. It is provided "as is", without any express or
implied warranties. The author will assume no liability for damages either
from the direct use of this product or as a consequence of the use of this
product.
Thanks to all users for ideas, comments, corrections, suggestions and bug
reports.
Special thanks to:
Klaus Staedtler translated World Clock to German, created new
World maps, idea, support and nice icons
Mark Eckstein DSTswitch to World Clock Interface, additional
information about TZ environment variable
Brian Crook tested World Clock under Object Rexx, useful
information about UTC
David Coward tested World map
BjФrn SФderstrФm translated World Clock to Swedish
Przemys╨ÿaw Pawe╨ÿczyk translated World Clock to Polish
OS/2 is Trademark of International Bussines Machines Corporation
DrDialog is Copyright of International Bussines Machines Corporation
FastIni.dll is Copyright of Dennis Bareis - OS/2 Developer in Australia
DSTswitch and DSTsWClk (DSTswitch to World Clock Interface) is copyright
of Mark Eckstein
World maps are copyrighted by Jet Propulsion Laboratory, California
Institute of Technology, Pasadena, CA.
ΓòÉΓòÉΓòÉ 22. Sources ΓòÉΓòÉΓòÉ
Information about Time Zones, Daylight Savings Time, Internet Time, latitudes
and longitudes, sunrise/sunset ... was compiled from various sources available
freely on the Internet. Credits are fully given to the known authors of any
material that was used.
To find more information on the Internet, visit:
Greenwich Time: GMT http://time.greenwich2000.com/
Time Service Department http://tycho.usno.navy.mil/
WORLDTIME: interactive atlas, time info http://www.worldtime.com/
The NIST Time and Frequency Division
http://www.bldrdoc.gov/timefreq/index.html
Universal Time Organisation http://www.universal-time.org/
Internet Time - Swatch
http://www.swatch.com/internettime/internettime.php3
Online Map Creation
http://www.aquarius.geomar.de/omc/
Find Latitude and Longitude for your city http://www.nima.mil/gns/html/
Sunrise, Sunset and Twilight Times
http://www.auslig.gov.au/geodesy/astro/sunrise.htm
Ssystem: OpenGL Solar System Simulator http://www1.las.es/~amil/ssystem/
ΓòÉΓòÉΓòÉ <hidden> ΓòÉΓòÉΓòÉ
Author Goran Ivankovic
Address Ulica Josipa Poduje 8
HR-52100 Pula
Croatia
email duga1@pu.tel.hr
Home page http://redrival.com/os2util/