Scieneer Common Lisp 1.3.9 online documentation

decode-universal-time universal-time &optional time-zone[Function]

Converts a universal-time to decoded time format returning the following nine values: second, minute, hour, date, month, year, day of week where 0 is Monday, t for daylight savings time or nil for standard time, and timezone. Completely ignores daylight-savings-time when time-zone is supplied.