Calendar

cal_days_in_month - Return the number of days in a month for a given year and calendar
cal_from_jd - Converts from Julian Day Count to a supported calendar
cal_info - Returns information about a particular calendar
cal_to_jd - Converts from a supported calendar to Julian Day Count
easter_date - Get Unix timestamp for midnight on Easter of a given year
easter_days - Get number of days after March 21 on which Easter falls for a given year
frenchtojd - Converts a date from the French Republican Calendar to a Julian Day Count
gregoriantojd - Converts a Gregorian date to Julian Day Count
jddayofweek - Returns the day of the week
jdmonthname - Returns a month name
jdtofrench - Converts a Julian Day Count to the French Republican Calendar
jdtogregorian - Converts Julian Day Count to Gregorian date
jdtojewish - Converts a Julian day count to a Jewish calendar date
jdtojulian - Converts a Julian Day Count to a Julian Calendar Date
jdtounix - Convert Julian Day to Unix timestamp
jewishtojd - Converts a date in the Jewish Calendar to Julian Day Count
juliantojd - Converts a Julian Calendar date to Julian Day Count
unixtojd - Convert Unix timestamp to Julian Day