STIME(2) System Calls Manual STIME(2)
stime - set time
Stime sets the system's idea of the time and date. Time, pointed to by
tp, is measured in seconds from 0000 GMT Jan 1, 1970. Only the super-
user may use this call.
date(1), time(2), ctime(3)
Zero is returned if the time was set; -1 if user is not the super-user.
(stime = 25.)
(time in r0-r1)