get
A generic method for calculating plag hamincha (the earliest time that Shabbos can be started) that is 10.75 hours after the start of the day, (or 1.25 hours before the end of the day) based on the start and end of the day passed to the method. The time from the start of day to the end of day are divided into 12 shaos zmaniyos (temporal hours), and plag hamincha is calculated as 10.75 of those shaos zmaniyos after the beginning of the day. As an example, passing sunrise and sunset or sea level and sea level sunset (depending on the isUseElevation elevation setting) to this method will return plag mincha according to the opinion of the GRA.
Return
the Date of the time of plag hamincha based on the start and end of day times passed to this method. If the calculation can't be computed such as in the Arctic Circle where there is at least one day a year where the sun does not rise, and one where it does not set, a null will be returned. See detailed explanation on top of the AstronomicalCalendar documentation.
Parameters
the start of day for calculating plag. This can be sunrise or any alos passed to this method.
the end of day for calculating plag. This can be sunset or any tzais passed to this method.