Inside Macintosh: AppleScript Scripting Additions Guide /

Chapter 2 - Scripting Addition Commands / Command Definitions

/

Time to GMT

The Time to GMT command returns the difference, in seconds, between the current time and Greenwich mean time (GMT). It is the only command provided by the Time to GMT scripting addition.

SYNTAX

time to GMT

PARAMETERS

None.

RESULT

An integer indicating the difference in seconds between the current time
and GMT.

EXAMPLES

Time to GMT returns the difference in seconds between the time of your computer's clock and GMT. For example, if you are in Cupertino, California, and your computer is set to Pacific Standard Time, Time to GMT returns
this result:

time to GMT
--result: -28800

You can then use this value to write a script that tells you the time difference between the time in any other time zone and the current time in Cupertino:

property offsetFromCupertino : -28800

set x to ((time to GMT) ÷ 60) ÷ 60
set y to x - (((offsetFromCupertino) ÷ 60) ÷ 60)

if y = 0 then
   display dialog ("Same time zone as Cupertino") as string
else
   if y > 0 then
      display dialog (y & " Hours Ahead of Cupertino") as 
string
   else
      display dialog (-y & " Hours Behind Cupertino") as 
string
   end if
end if

To see the effect this script has for different time zones, try setting the time from the Map control panel to various locations, for example, Tokyo, London, and Atlanta.

ERRORS

Error number	Error message
-108	Out of memory.
-1700	Can't make some data into the expected type.
-1701	Some parameter is missing for <commandName>.
-1704	Some parameter was invalid.
-1705	Operation involving a list item failed.
-1708	<reference> doesn't understand the <commandName> message.
-1718	Reply has not yet arrived.