When Is Easter?
RJM Programming
May, 2023
CAL_EASTER_DEFAULT For easter_days(): calculate Easter for years before 1753 according to the Julian calendar, and for later years according to the Gregorian calendar.
CAL_EASTER_ROMAN For easter_days(): calculate Easter for years before 1583 according to the Julian calendar, and for later years according to the Gregorian calendar.
CAL_EASTER_ALWAYS_GREGORIAN For easter_days(): calculate Easter according to the proleptic Gregorian calendar.
CAL_EASTER_ALWAYS_JULIAN For easter_days(): calculate Easter according to the Julian calendar.
CAL_GREGORIAN For cal_days_in_month(), cal_from_jd(), cal_info() and cal_to_jd(): use the proleptic Gregorian calendar.
CAL_JULIAN For cal_days_in_month(), cal_from_jd(), cal_info() and cal_to_jd(): use the Julian calendar.
CAL_JEWISH For cal_days_in_month(), cal_from_jd(), cal_info() and cal_to_jd(): use the Jewish calendar.
CAL_FRENCH For cal_days_in_month(), cal_from_jd(), cal_info() and cal_to_jd(): use the French Repuclican calendar.