by Andrew Tannenbaum yahr@shamash.org
running at
Shamash - The Jewish Network
Today's date: 7/20/2008 Sun, 17th of Tamuz, 5768
Given a calendar day as input, this program calculates a 50-year
yahrzeit calendar suitable for printing on a single page. The
calendar lists dates between now and Rosh Hashana 5811 (September
2050)
Notes: The Jewish day starts at sunset. The length of the Jewish year
varies, so some days and months do not occur in all years. The
following rules reflect my casual understanding of the halachos of yahrzeit
observation. Please consult your local halachic authority to be sure.
In some traditions, the first yahrzeit is observed on the anniversary
of burial, in others, on the anniversary of death.
All later yahrzeits are observed on the anniversary of death.
These calendars show only the anniversary of the date entered.
To enter a yahrzeit date for a death that occurred
after sunset but before midnight,
you must enter the date for the following day.
Month Adar II will list Adar I when Adar II does not occur.
Day Adar 30 will list Shevat 30 when Adar 30 does not occur.
Day Cheshvan 30 will list Kislev 1 when Cheshvan 30 does not occur
Day Kislev 30 will list Tevet 1 when Kislev 30 does not occur.
If you follow another tradition, for instance, that when Kislev 30 does
not occur, yahrzeit should be observed on Kislev 29, then print out
Kislev 29. Also, if you observe an Adar yahrzeit in both Adar I and
Adar II, then print out calendars for the date in both months.
If you wish, you may print the short versions of calendars for dates
which do not occur in all years by checking the "short" box.
I restrict civil date input to dates after 1800 because of
potential confusion about the
switch
from the Julian to Gregorian
calendar system, which took place a bit before 1800.
This is a yahrzeit calendar calculator rather than a simple calendar
because of the way it treats Adar II and the other variable months as
discussed above. It works as you would expect for other days, but
beware of these cases. In particular, rules for determination of bar
mitzvah dates are different from yahrzeit dates in some cases.
Other uses for these calendar lists:
yizkor dates
Jewish birthdays
yom tov dates, to avoid scheduling conflicts with annual events
final day of Pesach
(22 Nisan
outside of Israel,
21 Nisan
within Israel)
final day of Shavuos
(7 Sivan
outside of Israel,
6 Sivan
within Israel)
These calendars are calculated by software written by Andy Tannenbaum,
using data from Danny Sadinoff's Hebcal software,
running on the Shamash web server.
See also: