May I reproduce hebcal.com content in another form?

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Feel free to make printed calendars, email newsletters, refrigerator magnets, and other content using events from Hebcal.com. Except where otherwise noted, content on this site is licensed under a Creative Commons Attribution 3.0 License. Among other things, this license gives you permission to remix, transform, and build upon the material for any purpose, even commercially. You must give… Read more »

Chanukah and Thanksgiving in 2013

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We enjoyed reading Jonathan Mizrahi’s Hanukkah and Thanksgiving: A once in eternity overlap: Next year features an anomaly for American Jews – The first day of Hanukkah coincides with Thanksgiving, on 11/28/2013 (meaning the first night of Hanukkah is actually the night before Thanksgiving). I was curious how often this happens. It turns out that it… Read more »

Purim Katan

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Purim Katan is a rare guest that deserves special attention. In the 19-year cycle of regular and leap years we have nineteen Purims, but only seven Purim Katans. We must truly utilize it for special activities. There’s a strong connection between Purim and Purim Katan. The Mishnah teaches: “There is no difference between the first… Read more »

What are other good Jewish calendar sites on the web?

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For an excellent overview, see Jewish Calendar from Judaism 101. Also, you might see Yahoo!’s Judaism Resources: Calendars page. The Orthodox Union also lists Shabbat and Holiday Candle Lighting Times for both American and international cities, as well as a Jewish Holidays website. If you’re looking for more than just candle-lighting times, check out Kashrut.com’s… Read more »

Can you recommend any books on the Hebrew Calendar or Jewish Holidays?

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For a good reference book on the major Jewish Holidays, I’d suggest Michael Strassfeld’s The Jewish Holidays: A Guide & Commentary. Rabbi Nathan Bushwick’s Understanding the Jewish Calendar explains some of the mathematical and scientific underpinnings of the calendar. For a comprehensive look at 25 different calendar systems (including Hebrew, Gregorian, Julian, Mayan and Hindu),… Read more »

Can I download a copy of the hebcal.com program for my computer?

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Hebcal for UNIX is a free program and is available for download at https://github.com/hebcal/hebcal. This is the same engine that powers the hebcal.com website. The downloadable program has a text (command-line) interface, not a fancy graphical one. Kaluach is an unrelated program available at http://www.kaluach.com/. The author requests donations, but does not have a set… Read more »

Printing out Hebcal Jewish calendars

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Pages generated by the Interactive Jewish Calendar can be printed very easily on standard 8.5×11″ paper. Just try “Print Preview” and you’ll see what it looks like. You can print out an entire year at a time and each month will end up on a separate sheet. To print other sizes, we recommend and importing… Read more »