stime - set time
#include <time.h> int stime(time_t *t);
stime sets the system's idea of the time and date. Time, pointed to by t, is measured in seconds from 00:00:00 GMT January 1, 1970. stime() may only be executed by the super user.
On success, zero is returned. On error, -1 is returned, and errno is set appropriately.
EPERM The caller is not the super-user.
SVr4, SVID, X/OPEN