gettimeofday man page

Prolog

This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the corresponding Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.

gettimeofday — get the date and time

Synopsis

#include <sys/time.h>

int gettimeofday(struct timeval *restrict tp, void *restrict tzp);

Description

The gettimeofday() function shall obtain the current time, expressed as seconds and microseconds since the Epoch, and store it in the timeval structure pointed to by tp. The resolution of the system clock is unspecified.

If tzp is not a null pointer, the behavior is unspecified.

Return Value

The gettimeofday() function shall return 0 and no value shall be reserved to indicate an error.

Errors

No errors are defined.

The following sections are informative.

Application Usage

Applications should use the clock_gettime() function instead of the obsolescent gettimeofday() function.

Future Directions

The gettimeofday() function may be removed in a future version.

See Also

clock_getres(), ctime()

The Base Definitions volume of POSIX.1‐2008, <sys_time.h>

Info

2013 IEEE/The Open Group POSIX Programmer's Manual