sof
This method returns the latest zman tfila (time to recite the morning prayers) according to the opinion of the Magen Avraham (MGA) based on alos being 72 minutes before sunrise. This time is 4 shaos zmaniyos (solar hours) after dawn based on the opinion of the MGA that the day is calculated from a dawn of 72 minutes before sunrise to nightfall of 72 minutes after sunset. This returns the time of 4 * shaahZmanis72Minutes after dawn. This class returns an identical time to sofZmanTfilaMGA and is repeated here for clarity.
Return
the Date of the latest zman tfila. 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.