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.

NAME

       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.

EXAMPLES

       None.

APPLICATION USAGE

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

RATIONALE

       None.

FUTURE DIRECTIONS

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

SEE ALSO

       clock_getres(), ctime()

       The Base Definitions volume of POSIX.1‐2017, <sys_time.h>

COPYRIGHT

       Portions  of  this  text  are  reprinted  and  reproduced in electronic form from IEEE Std
       1003.1-2017, Standard for Information Technology -- Portable  Operating  System  Interface
       (POSIX),  The  Open Group Base Specifications Issue 7, 2018 Edition, Copyright (C) 2018 by
       the Institute of Electrical and Electronics Engineers, Inc and The  Open  Group.   In  the
       event  of  any  discrepancy  between this version and the original IEEE and The Open Group
       Standard, the original IEEE and The Open Group  Standard  is  the  referee  document.  The
       original Standard can be obtained online at http://www.opengroup.org/unix/online.html .

       Any  typographical  or  formatting errors that appear in this page are most likely to have
       been introduced during the conversion of the source files to man page  format.  To  report
       such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .