.\" Copyright (c) 1980 Regents of the University of California.

.\" All rights reserved. The Berkeley software License Agreement

.\" specifies the terms and conditions for redistribution.

.\"

.\" @(#)gettimeofday.2 6.7 (Berkeley) 5/14/86

.\"

.TH TIME 2 "May 14, 1986"

.UC 4

.SH NAME

time, stime \- get/set date and time

.SH SYNOPSIS

.nf

.ft B

#include <sys/types.h>

#include <time.h>

time_t time(time_t *\fItp\fP)

int stime(time_t *\fItp\fP)

.fi

.SH DESCRIPTION

The system's notion of the current Greenwich time

is obtained with the

.B time

call, and set with the

.B stime

call.

The time is expressed

in seconds since midnight (0 hour), January 1, 1970.

The time is both returned by

.B time

and stored in the variable pointed to by

.I tp

unless

.I tp

is the null pointer.

.PP

.B Stime

obtains the time to set from the variable pointed to by

.IR tp .

.PP

Only the super-user may set the time of day.

.SH RETURN

A 0 return value from

.B stime

indicates that the call succeeded.

.B Time

returns the current time on success.

A \-1 return value indicates an error occurred, and in this

case an error code is stored into the global variable \fBerrno\fP.

.SH "ERRORS

The following error codes may be set in \fBerrno\fP:

.TP 15

[EFAULT]

The

.I tp

address referenced invalid memory.

.TP 15

[EPERM]

A user other than the super-user attempted to set the time.

.SH "SEE ALSO"

.BR date (1),

.BR ctime (3).