I was just rereading ANSI C X3J11 and noticed that strftime and mktime are in there. Since POSIX is a superset (by definition) of ANSI C, POSIX will have strftime and mktime, it isn't an option. Personally, I think strftime botches timezones - "hours" doesn't say which time zone. X3J11 says it's OK for gmtime to return NULL at run time if the operating system doesn't keep track of time zones! (Personally I'm a little tired of the timezone nonsense in MS DOS; some programs assume the clock/cal is GMT (those that use Microsoft C) and others local, so I have to set the TZ to EST0EDT to get all programs to work. Mark