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Conference taveng::bagels

Title:	BAGELS and other things of Jewish interest
Notice:	1.0 policy, 280.0 directory, 32.0 registration
Moderator:	SMURF::FENSTER

Created:	Mon Feb 03 1986
Last Modified:	Thu Jun 05 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	1524
Total number of notes:	18709

1106.0. "Jewish calendar" by ASSON::KLEIN (My life is based on a true story) Wed Sep 25 1991 18:32

Moed Tov,


I am looking for some algorithms to create my own jewish calendar program. 
I have several versions running on PC but I do not have the sources and would
like to run it on VMS & Ultrix.

I am looking for :
 - the conversions between loazit to jewish and jewish to loazit date, 
 - the calculation of the weekly parashiots for both Israel & the Gola,
 - the calculation of the different timings ("kriat shema","minh'a guedola", 
   "plag minh'a", "etset hakoravim"...) for any given latitude & longitude.

If you have any of these algorithms or the C version of a jewish calendar 
posted -may be a year ago- on the Usenet jewish conference, I will appreciate
your help

Thank you & have a nice Hol Hamoed.

(Here in Boston, Simcha Beth Hachova is done on a very big scale!!! We have 
heavy rain since midnight -probably more than 3 inches now -: I missed my 
jerusalemite hol hamoed...)

/Philippe

T.R	Title	User	Personal Name	Date	Lines
1106.1		SUBWAY::STEINBERG	Anacronym: an outdated acronym	`Wed Sep 25 1991 22:26`	7
	Re: .0 I have Ultrix/Unix code that will do most of those tricks. Send mail. Jem
1106.2	send mail to KOBAL::SCHOELLER	KOBAL::GVRIEL::SCHOELLER	Schoeller - Failed Xperiment	`Wed Sep 25 1991 23:56`	8
	I have some portable code that will do some of it. I can get sunrise and sunset (astronomical and observed) for the locations. It will tell you the date conversion (including time of day corrections when checkin the jewish date for the current time). I never added the specific timings. I have source and some insight into the programming since I did the merge of hcal and planets to get it to work. Gav
1106.3	me too	TAVENG::MONTY	M. Sagal ISEDA/I (DTN - 882 3477)	`Sun Sep 29 1991 17:27`	8
	I also have some C sources that I pulled off the USENET many moons ago. I had it run successfully run under VMS. If you want the sources please send mail. Regards, .... Monty
1106.4	It is closer than I ever thaught...	TAVIS::JUAN		`Tue Oct 01 1991 19:28`	23
	Re: .3 > > I also have some C sources that I pulled off the USENET many moons ago. > > I had it run successfully run under VMS. If you want the sources please > send mail. > > Regards, > .... Monty Monty: Do I have to come this far to find you have what I am looking for? A customer of mine, (the 2nd largest "petrol" company in Israel) is looking for some code that would permit them to place the Jewish holydays against the Gregorian calendar, in order to serve their Human Resources Systems. Please froward it to me. Juan-Carlos Kiel
1106.5	HCAL from the TOOLSHED	ELWOOD::BITNER	Haim Bitner	`Sat Oct 05 1991 01:20`	10
	I am using the programs HCAL and HDATE. I got it from the TOOLSHED. It works very nice. Comes with the algorithm and with C source code. Haim Bitner
1106.6	Me too, but it is missing two features	DECSIM::HAMAN::GROSS	The bug stops here	`Mon Oct 07 1991 15:44`	9
	I have taken the C sources from the toolshed and converted the algorithms to Apple-II Basic. And, yes, it works great. But it doesn't provide candle-lighting times (or other times such as begining/ending of fasts) and it doesn't give the weekly Torah readings. These are available for IBM-compatibles. I'd love to see the sources so we could have DEC and Apple versions too. Dave
1106.7		RANGER::MINOW	The best lack all conviction, while the worst	`Fri Nov 15 1991 15:56`	13
	I added sunrise/sunset times to hcal, but haven't distributed it because there are some problems (you need to know latitude, longitude, and the current timezone offset, and I couldn't figure out how to handle daylight savings time). Also, I wasn't certain about the Jewish calendar definition of "sunrise" or "sunset" (there are three definitions: civil, navigational, and astronomical). Contact me directly if you'd like the code. Martin. ps: I got the code off of Usenet, so it's public domain as far as I'm concerned.