date, clock – date and time


date [ option ] [ seconds ]


Print the date, in the format

Tue Aug 16 17:03:52 CDT 1977

The options are


Report Greenwich Mean Time (GMT) rather than local time.  


Report the date as the number of seconds since the epoch, 00:00:00 GMT, January 1, 1970.  


Report the date as ISO-8601 without time and timezone suffix.  


Report the date as ISO-8601 with time and timezone suffix.  


Report the date as an email compatible (RFC2822) time stamp.  

The conversion from Greenwich Mean Time to local time depends on the $timezone environment variable; see ctime(2).

If the optional argument seconds is present, it is used as the time to convert rather than the real time.

Clock draws a simple analog clock in its window.



Current timezone name and adjustments.  


A directory containing timezone tables.  


Default timezone file, copied by init(8) into /env/timezone.