Provided by: hebcal_3.5-2_amd64 bug


       hebcal - a Jewish calendar generator


       hebcal [ -8acdDehHiorsStTwy ]
            [ -I input_file ]
            [ -Y yahrtzeit_file ]
            [ -C city ]
            [ -l latitude -L longitude]
            [ -z timezone ]
            [ -Z daylight_savings_scheme ]
            [[ month [ day ]] year ]
       hebcal help
       hebcal info
       hebcal DST
       hebcal cities
       hebcal copying
       hebcal warranty


       With  no  arguments,  hebcal  will print to stdout the dates of the Jewish holidays in the
       current secular year.  Each line is prefixed with a gregorian date of the form mm/dd/yyyy.

       By specifying month, day, or year, output can be limited to a particular month or date  in
       a  particular  year.  Note that year is usually a four-digit integer,  So 92 is during the
       Roman period, not the late twentieth century.  In if the hebrew dates option is turned on,
       this number represents th Jewish calendar year.  month is a number from 1..12, or the name
       of a Jewish calendar month.

       day is a number from 1..31.

       For example, the command
            hebcal 10 1992
       will print out the holidays occurring in October of 1992 C.E., while the command

            hebcal Tish 5752

       will print dates of interest in the month of Tishrei in Jewish calendar year 5752.

       NOTE:  hebcal 92 is not the same as hebcal 1992.  The year is assumed to be  complete,  so
       the former calendar preceeds the latter by nineteen centuries.

       A  few  other  bells and whistles include the weekly sedra as well as the day of the week,
       the count of the omer, and the Hebrew date.

       Output from hebcal can be used  to  drive  calendar(1).   Day-to-day  use  for  hebcal  is
       provided  for  in  the -T and -t switches, which print out Jewish calendar entries for the
       current date.

       To get a quick-reference on-line help, type
            hebcal help
       at the command prompt.


       -8     Use 8-bit Hebrew (ISO-8859-8-Logical).

       -a     Use Ashkenazis hebrew.

       -c     Add approximate candle-lighting times.  See below.

       -d     Print the Hebrew date for the entire date range.

       -D     Print the hebrew date for dates with some event.

       -e     Change the output format to European-style dates:

       -h     Suppress holidays in output.  User defined calendar events are unaffected  by  this

       -H     When  the -H switch is used, all dates specified on the command line are assumed to
              be hebrew dates.  So for instance,

                   example% hebcal -H 5754

              will print data for 5754, Starting in Tishrei, and ending in Elul.  Hebcal is smart
              enough to detect a Hebrew month and infer that you want a Hebrew date range, so you
              could type

                   example% hebcal tish 5754

              The -H switch would be superfluous in this case.  Invoking hebcal with just the  -H
              switch by itself will print data for the current Hebrew year, starting in Tishrei.

       -i     Use  the  Israeli sedra scheme when used in conjunction with -S or -s.  This has no
              effect if the -S or -s switches are unused.

       -I file
              Read extra events from file.   These  events  are  printed  regardless  of  the  -h
              suppress holidays switch.
              There is one holiday per line in file, each with the format
              month day description
              where  month  is  a string identifying the Jewish month in question day is a number
              from 1 to 30,  and  description  is  a  newline-terminated  string  describing  the
              holiday.  An example might be
                   Adar 1 Start cleaning kitchen for Passover.
                   Adar 1 Start cleaning kitchen for Passover.

       -l deg,min
              Set the latitude for solar calculations to deg degrees and min

       -L deg,min
              Set  the  longitude  for  solar calculations to deg degrees and min minutes.  NOTE:
              Negative values are EAST longitude.

       -o     Add the count of the omer to the output.

       -r     Use a tab-delineated format, and somewhat terser strings.  Instead of saying ' 13th
              day of the omer ' hebcal will say ' Omer: 13 '

       -s     Add the weekly sedra to the output on Saturdays.  See -i.

       -S     Add  the  weekly sedra to the output every day.  When this option is invoked, every
              time a day is printed, the  torah  reading  for  the  Saturday  on  or  immediately
              following that date is printed.  If there is no reading for the next Saturday, then
              nothing is printed.  See -i.

       -t     Print calendar information for today's date only.  -d and -o are asserted with this

       -T     Same  as  -t,  only  without  the  gregorian  date.  This option is useful in login
              scripts, just to see what's happening today in the Jewish calendar.

       -w     Add the day of the week to the output.

       -y     Print only the last two digits of the year.

       -Y file
              Read a table of yahrtzeit dates from file.  These events are printed regardless  of
              the -h suppress holidays switch.
              There is one death-date per line in file, each with the format
              month day year description
              where  month,  day  and  year  form the  gregorian date of death.  description is a
              newline-terminated string to be printed on the yahrtzeit.  An example might be

                   12 29 1957 Menachem Mendel's yahrtzeit.
                   5 15 1930 Benjamin's yahrtzeit.


       Hebcal's candlelighting times are only approximations.  If you ever have any doubts  about
       it's  times,  consult  your local halachic authority.  If you enter geographic coordinates
       above the artic circle or antarctic circle, the times are guaranteed to be wrong.

       Hebcal contains a small database of cities with their  associated  geographic  information
       and  time-zone  information.   The  geographic and time information necessary to calculate
       sundown times can come to hebcal any of three ways:

       1) The default: the system manager sets a default city when the program is compiled.
       2) Hebcal looks in the environment variable HEBCAL_CITY for the name of a city in hebcal's
       database, and if it finds one, hebcal will make that the new default city.
       3)  1  and 2 may be overridden by command line arguments, including those specified in the
       HEBCAL_OPTS environment variable.  The most natural way to do this is to use the  -c  city
       command.   This will localize hebcal to city.  A list of the cities hebcal knows about can
       be obtained by typing
            hebcal cities
       at the command prompt.  If the city you want isn't on that list, you can directly  control
       hebcal's  geographic  information  with  the  -l,  -L  -z  and -Z DST switches.  Note that
       changing the geographic coordinates causes  the  timezone  to  default  to  Zulu  and  the
       daylight savings time processor to default to 'none.' To get a list of possible values for
       DST, type
            hebcal DST
       at the command prompt.

       For a status report on customizations, type type
            hebcal info
       at the command prompt.


       To find the days of the omer in 1997, printing the days of the week:
              example% hebcal -how 1997
              4/23/97 Wed, 1st day of the Omer
              4/24/97 Thu, 2nd day of the Omer
              4/25/97 Fri, 3rd day of the Omer
              6/9/97 Mon, 48th day of the Omer
              6/10/97 Tue, 49th day of the Omer

       To print only the weekly sedrot of Nisan 5770
              example% hebcal -hs Nisan 5770
              3/20/2010 Parashat Vayikra
              3/27/2010 Parashat Tzav
              4/10/2010 Parashat Shmini

       To find out what's happening in the Jewish calendar today , use
              example% hebcal -TS
              19 of Nisan, 5752
              Parshat Achrei Mot
              Pesach V (CH"M)
              4th day of the Omer


       Hebcal uses two environment variables:

              Hebcal uses this value as the default city for  sunset  calculations.   A  list  of
              available cities is available with from hebcal with the command:
              hebcal cities

              The  value  of  this variable is automatically processed as if it were typed at the
              command line before any other actual command-line-arguments.


       Danny Sadinoff


       calendar(1), emacs(1), hcal(1), hdate(1), omer(1), remind(1), rise(1)

       The     latest     version     of     the     code     will     be     available      from

       The original motivation for the algorithms in this program was the Tur Shulchan Aruch.

       For  version  3,  much  of the program was rewritten using Emacs 19's calendar routines by
       Edward M. Reingold and Nachum Dershowitz.  Their program is extremely clear  and  provides
       many instructive examples of fine calendar code in emacs-LISP.

       A  well  written  treatment  of  the  Jewish  calendar  for  the  layman  can  be found in
       Understanding the Jewish Calendar by Rabbi Nathan Bushwick.  A more complete  bibliography
       on  the  topic  can  be  found  there, as well as in the Encyclopedia Judaica entry on the


       hebcal help
              Prints a shorter version of this manpage, with comments on each option.

       hebcal info
              Prints the version number and default values of the program.

       hebcal DST
              Prints a list of available daylight savings time schemes, suitable as arguments  to
              the -Z DST option.

       hebcal cities
              Prints  a  list of cities which hebcal knows about, suitable as arguments to the -C
              city option.  If your city does not appear on this list, put the necessary defaults
              in the DST_OPTS  environment variable.

       hebcal copying
              Prints the GNU license, with information about copying the program.  See below.

       hebcal warranty
              Tells you how there's NO WARRANTY for hebcal.


       This  is just a program I wrote during summer school and while avoiding my senior project.
       It should not be invested with any sort of halachic authority.


       Hebrew dates are only valid before sundown on that secular date.   An  option  to  control
       this will be added in a later release.

       Negative longitudes are EAST of Greenwich.

       Some combinations of options produce weird results, e.g.
       hebcal -dH nisan 5744
       hebcal -dH 5744
       This comes into play when you use the ENV_OPT environment variable.

       The  sunup/sundown  routines  aren't accurate enough.  If you enter geographic coordinates
       above the artic circle or antarctic circle, the times are guaranteed to be wrong.

       Hebcal only translates between the Gregorian calendar and the Jewish calendar. This  means
       that the results will be at least partly useless where and when the gregorian calendar was
       not used, i.e. before the 1752 in Britain and  before  circa  1918  in  Russia.   See  the
       wikipedia  entry  for  a splendid chart of the changeover from the Julian to the Gregorian
       calendars in various places.

       Hebcal cannot handle date computations before 2 C.E.  sorry.

       Daylight-Savings time rules are as up-to-date as a nonpaying job allows.  US DST rules are
       correct only back to 1966.

       Hebcal  assumes  that the Energy Policy Act of 2005, which changes the DST rules in the US
       will go into effect, even though congress may still revert it.


       Danny Sadinoff


       Copyright (c) 1994-2004 Danny Sadinoff
       Portions Copyright (c) 2002 Michael J. Radwin. All Rights Reserved.

       Permission is granted to make and distribute verbatim copies of this manual  provided  the
       copyright notice and this permission notice are preserved on all copies.

       Permission  is  granted  to copy and distribute modified versions of this manual under the
       conditions for verbatim copying, provided  that  the  entire  resulting  derived  work  is
       distributed under the terms of a permission notice identical to this one.

       Permission  is  granted  to  copy  and distribute translations of this manual into another
       language, under the above conditions for modified versions, except  that  this  permission
       notice may be included in translations approved by the Free Software Foundation instead of
       in the original English.

       For a full text of the copyright and lack of warranty information, type
       hebcal copying
       hebcal warranty
       at the command line.