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- This program accepts a year of the Jewish calendar, for example
- "5750", and produces on the screen a calendar of that year with a
- visually equivalent civil calendar opposite it for easy conversion of
- dates. The months of the civil year are abbreviated to
-
- JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
-
- and of the Jewish calendar to
-
- NIS IYA SIV TAM AV ELU TIS HES KIS TEV SHE ADA AD2.
-
- Months are normally displayed three at a time. You call up the next
- three by hitting spacebar. At the end of the year you can indicate if
- you wish the program to conclude, by hitting spacebar again. If in
- response to the question, Do you wish to continue? you enter "y" and
- hit return, the next year will be displayed.
-
- Each Jewish month has its name on the left. The corresponding secular
- dates will have the name of the month on the right, and when the month
- changes it will be indicated on the right also.
-
-
-
-
- If you wish, you may enter a civil year in the form -70 for BCE dates
- and +70 for CE dates. The Jewish year beginning prior to Jan 1 of that
- year will be displayed, and you can continue with the next Jewish year
- if you wish to complete the desired civil year.
-
- You may enter CE or AD instead of + or BC or BCE instead of the minus
- sign if you wish. It is best to avoid spaces, so enter 1987AD, for
- example.
-
- The year 0 is not meaningful in either calendar. No date prior to 1
- in the Jewish calendar should be entered. The program will calculate
- any future year, but will take longer for years much beyond the year
- 6000 in the Jewish reckoning. For example, the year 7000 will take
- three minutes or so to appear if your machine is not very fast.
- Earlier years should appear in a few seconds.
-
- A status line at the bottom of the screen indicates the civil and
- Jewish year, and the number of days in each. Jewish years may contain
- 354, 355, 356, 384, 385 or 386 days according to circumstances.
-
-
-
-
- When you are familiar with this program you can enter the years you
- wish to see on the command line. For example, if you call the program
- iconx calendar 5704 +1987 1BC
- you will see in turn the Jewish year 5704, the Jewish year commencing
- in 1986 and the Jewish year commencing in 2 B.C.E. You still have the
- option of seeing the years subsequent to these years if you wish. Just
- enter "y" when asked if you want to continue. When you enter "n", you
- will get the next year of your list.
-
- All civil dates are according to the Gregorian Calendar which first
- came into use in 1582 and was accepted in different places at
- different times. Prior to that date the Julian calendar was in use. At
- the present time the Julian calendar is 13 days behind the Gregorian
- Calendar, so that March 15 1917 in our reckoning is March 2 in the
- Julian Calendar. The following table shows the number of days that
- must be subtracted from the Gregorian date given here to find the Julian
- date. In the early centuries of this table and before, the calendar was
- intercalated erratically, so a simple subtraction is not possible. Note that
- the change in the number to subtract applies from March 1 in the century
- year, since in the Julian Calendar that will be February 29 except in years
- divisible by 400 which are leap years in the Gregorian calendar also.
-
- Century # to subtract Century # to subtract
- 21 13 11 6
- 20 13 10 5
- 19 12 9 4
- 18 11 8 4
- 17 10 7 3
- 16 10 6 2
- 15 9 5 1
- 14 8 4 1
- 13 7 3 0
- 12 7 2 -1
- 1 -2
-