The cal_from_jd() function converts a given Julian day into a date (in the form of an array) of a supported calendar.cal_from_jd — Converts from Julian Day Count to a supported calendar.The cal_from_jd() function converts a Julian Day Count into a date of a specified calendar.cal_from_jd() converts the Julian day given in jd into a date of the specified calendar. Supported calendar values are CAL_GREGORIAN, CAL_JULIAN, CAL_JEWISH and CAL_FRENCH.Returns an array containing calendar information like month, day, year, day of week, abbreviated and full names of weekday and month and the date in string form "month/day/year".