NAME    [Toc]    [Back]

     time -- get time of day

LIBRARY    [Toc]    [Back]

     Standard C Library (libc, -lc)

SYNOPSIS    [Toc]    [Back]

     #include <time.h>

     time_t
     time(time_t *tloc);

DESCRIPTION    [Toc]    [Back]

     The time() function returns the value of time in seconds since 0 hours, 0
     minutes, 0 seconds, January 1, 1970, Coordinated Universal Time.  If an
     error occurs, time() returns the value (time_t)-1.

     The return value is also stored in *tloc, provided that tloc is non-null.

ERRORS    [Toc]    [Back]

     The time() function may fail for any of the reasons described in
     gettimeofday(2).

SEE ALSO    [Toc]    [Back]

     gettimeofday(2), ctime(3)

STANDARDS    [Toc]    [Back]

     The time function conforms to IEEE Std 1003.1-2001 (``POSIX.1'').

BUGS    [Toc]    [Back]

     Neither ISO/IEC 9899:1999 (``ISO C99'') nor IEEE Std 1003.1-2001
     (``POSIX.1'') requires time() to set errno on failure; thus, it is impossible
 for an application to distinguish the valid time value -1 (representing
 the last UTC second of 1969) from the error return value.

     Systems conforming to earlier versions of the C and POSIX standards
     (including older versions of FreeBSD) did not set *tloc in the error
     case.

HISTORY    [Toc]    [Back]

     A time() function appeared in Version 6 AT&T UNIX.


FreeBSD 5.2.1			 July 18, 2003			 FreeBSD 5.2.1