yahrzeit
There are 4 repositories under yahrzeit topic.
KosherJava/zmanim
KosherJava Zmanim API / Library
hebcal/hebcal-es6
perpetual Jewish Calendar with holidays, Shabbat and holiday candle lighting and havdalah times, Torah readings, and more
Elyahu41/KosherSwift
KosherJava Zmanim API / Library ported to Swift. KosherJava is a library used to calculate astronomical and religious dates and times based on your location.
LeonidMorgulis/JewishCalendar
.NET library, allowing conversion of gregorian dates into hebrew dates and back, calculations of Yahrzeit (for particular gregorian or jewish year), jewish holidays etc.