sof
This method returns the latest zman krias shema (time to recite Shema in the morning) based on the opinion that the day starts at alos 16.1˚ and ends at tzais 7.083˚.
3 shaos zmaniyos are calculated based on this day and added to alos to reach this time.
This time is 3 shaos zmaniyos (temporal hours) after alos 16.1˚ based on the opinion that the day is calculated from a alos 16.1˚ to tzais 7.083˚.
**Note: ** Based on this calculation chatzos will not be at midday.
Return
the Date of the latest zman krias shema based on this calculation. If the calculation can't be computed such as northern and southern locations even south of the Arctic Circle and north of the Antarctic Circle where the sun may not reach low enough below the horizon for this calculation, a null will be returned. See detailed explanation on top of the AstronomicalCalendar documentation.