Date::Passover - When is Passover? When is Rosh Hashanah?
Calculate the date of Passover or Rosh Hashanah for any given year....RBOW/Date-Passover-1.12 - 19 Jan 2015 21:48:44 UTC
Date::GoldenNumber - Calculates the golden number used in John Conway's date calculations
Most of John Conway's date calculation algorithms need the golden number, which is Remainder(Y/19) + 1. Yes, this is very simple, but it is inconvenient to have to rember this....RBOW/Date-Passover-1.12 - 19 Jan 2015 21:48:44 UTC
Date::SundayLetter - Calculates the Sunday Letters for a given year
Sunday Letters are an important concept from calendrics. Stated very simply, the sunday letter represents how many days after January 1 the first Sunday of the year is. Knowing the makes it easy to calculate the day of the week of a given day, when E...RBOW/Date-SundayLetter-1.10 - 29 Aug 2002 23:40:54 UTC