JewCal¶
JewCal is a Jewish Calendar with holidays and fasts for Israel and Diaspora.
You can convert Gregorian to Jewish dates and determine whether a day is (Erev) Shabbat, (Erev) Yom Tov, Issur Melacha and more.
JewCal is mainly developed for use with home automation (e.g. Home Assistant with AppDaemon).