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Date and Time

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

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

CALENDAR - Displays a calendar for a given month or year.

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

SYSTIME - Returns the current time as either a date/time string, as the number of seconds elapsed since 1 January 1970, or as a Julian date/time value.

TIMEGEN - Returns an array of double-precision floating-point values that represent date/times in terms of Julian values.

  IDL Online Help (March 06, 2007)