Visit Our UNIX and Linux User Community

Linux and UNIX Man Pages

Test Your Knowledge in Computers #983
Difficulty: Medium
The first official NetBSD release, NetBSD 0.1, was made on 9 April 1991.
True or False?
Linux & Unix Commands - Search Man Pages

time(3) [osx man page]

TIME(3) 						   BSD Library Functions Manual 						   TIME(3)

NAME
time -- get time of day LIBRARY
Standard C Library (libc, -lc) SYNOPSIS
#include <time.h> time_t time(time_t *tloc); DESCRIPTION
The time() function returns the value of time in seconds since 0 hours, 0 minutes, 0 seconds, January 1, 1970, Coordinated Universal Time, without including leap seconds. 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
The time() function may fail for any of the reasons described in gettimeofday(2). SEE ALSO
gettimeofday(2), ctime(3) STANDARDS
The time function conforms to IEEE Std 1003.1-2001 (``POSIX.1''). HISTORY
A time() function appeared in Version 6 AT&T UNIX. BUGS
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 impossi- ble 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. BSD
July 18, 2003 BSD

Check Out this Related Man Page

time(2) 							   System Calls 							   time(2)

NAME
time - get time SYNOPSIS
#include <sys/types.h> #include <time.h> time_t time(time_t *tloc); DESCRIPTION
The time() function returns the value of time in seconds since 00:00:00 UTC, January 1, 1970. If tloc is non-zero, the return value is also stored in the location to which tloc points. If tloc points to an illegal address, time() fails and its actions are undefined. RETURN VALUES
Upon successful completion, time() returns the value of time. Otherwise, (time_t)-1 is returned and errno is set to indicate the error. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |Async-Signal-Safe | +-----------------------------+-----------------------------+ SEE ALSO
stime(2), ctime(3C), attributes(5), standards(5) SunOS 5.10 28 Dec 1996 time(2)

2 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

How To Fetch Time From Putside Source On Unix Platform?

CAN ANY PLESE TEL ME,HOW CAN I FETCH TIME FROM SOME EXTERNAL SOURCE (eg. NETWORK TIME SERVER S 200) ON UNIX PLATFORM,PROVIDED TIME IS COMING FROM SOME IP "X".WHAT CODE SHOULD I RUN IN STARTUP (2 Replies)
Discussion started by: pesty
2 Replies

2. AIX

AIX TIME CHANGE

Hi Guys , I see a weird problem with one of the AIX Machine, The time is changing randomly on the server. The seconds part of the time is what is the problem which is jumping on a uneven order and coming back to the original state after some time and again the same.. I have collected the time... (8 Replies)
Discussion started by: kkeng808
8 Replies

Featured Tech Videos