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NAME

       time - get time in seconds

SYNOPSIS

       #include <time.h>

       time_t time(time_t *t);

DESCRIPTION

       time()  returns  the  time  since  the  Epoch (00:00:00 UTC, January 1,
       1970), measured in seconds.

       If t is non-NULL, the return value is also stored in the memory pointed
       to by t.

RETURN VALUE

       On  success,  the value of time in seconds since the Epoch is returned.
       On error, ((time_t)-1) is returned, and errno is set appropriately.

ERRORS

       EFAULT t points outside your accessible address space.

NOTES

       POSIX.1 defines seconds since the Epoch as a value to be interpreted as
       the number of seconds between a specified time and the Epoch, according
       to a formula for conversion from UTC equivalent to  conversion  on  the
       naïve  basis that leap seconds are ignored and all years divisible by 4
       are leap years.  This value is not the same as  the  actual  number  of
       seconds  between  the  time  and the Epoch, because of leap seconds and
       because clocks are not  required  to  be  synchronised  to  a  standard
       reference.   The  intention is that the interpretation of seconds since
       the Epoch values be consistent; see POSIX.1 Annex B 2.2.2  for  further
       rationale.

CONFORMING TO

       SVr4, SVID, POSIX, X/OPEN, 4.3BSD
       Under  4.3BSD,  this  call is obsoleted by gettimeofday(2).  POSIX does
       not specify any error conditions.

SEE ALSO

       date(1), gettimeofday(2), ctime(3), ftime(3)