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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.1‐2008, <sys_time.h>


COPYRIGHT
       Portions  of  this  text  are  reprinted  and  reproduced in electronic form from IEEE Std
       1003.1, 2013 Edition, Standard for Information Technology  --  Portable  Operating  System
       Interface  (POSIX),  The Open Group Base Specifications Issue 7, Copyright (C) 2013 by the
       Institute of Electrical and Electronics Engineers, Inc  and  The  Open  Group.   (This  is
       POSIX.1-2008  with  the  2013  Technical  Corrigendum  1  applied.)  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.unix.org/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 .