BIN_DATE: Converts ASCII date/time string to binary string.

CALDAT: Converts Julian date to month, day, year.

CALL_EXTERNAL: Displays a calendar for a given month or year.

JULDAY: Returns Julian Day Number for given month, day, and year.

SYSTIME: Returns the current system time as either a string, the number of seconds, or as a Julian date.

TIC: Start the tick/tock clock for measuring elapsed time.

TOC: Stop the tick/tock clock for measuring elapsed time.

TIMEGEN: Returns an array of Julian date/time values.

TIMESTAMP: Returns a date/time string in ISO-8601 format.

TIMESTAMPTOVALUES: Returns the date and time, given a date/time string in ISO-8601 format.