||Returns CPU time used in seconds.
||Computes the day of the week for a given date.
||Computes the number of days from January 1, 1900, to the given date.
||Gives the date corresponding to the number of days since January 1, 1900.
||Gets today's date.
||Gets time of day.
||Obtains STAT/LIBRARY-related version, system and serial numbers.