KosherJava

The international dateline is an internationally agreed upon, arbitrarily selected, line that demarcates one calendar day from the next. This line is about 180° from Greenwich and was selected since it is opposite Greenwich and mostly runs through uninhabited areas. The line (see the gray line in the map above) meanders around national borders and [...]

Calculating the earliest and latest times for Kiddush Levana has not been part of the KosherJava Zmanim API until now. This is because unlike other zmanim that solely rely on solar calculations that are tied to the Gregorian calendar, times for Kiddush Levanah depend on the Jewish calendar molad (lunar conjunction) computation. With the recent [...]

Question:How do I get the Jewish Date for … using the Zmanim API? Answer:The current version of the Zanim API does not support Jewish calendrical calculations. Zmanim are almost exclusively based on the solar calendar, so for example, the sunrise on February 8th this year in Montreal (or any other date and location), will be [...]