sleep 1 will sleep for around one second. Given the vagaries of multiuser systems, clock timings, and cosmic rays (you can never tell) -- sleep might run for 0.9 seconds or 1.05 seconds. Add to that time the amount of time that date takes to run, and I can easily see seconds being skipped:
09:12:03.75 - date runs, prints 09:12:03
09:12:04.05 - sleep runs
09:12:05:06 - date runs, prints 09:12:05
I would expect even a simple C-program such as:
to skip a second now and again, although a lot less frequently.
Hi, I am pretty new to the Solaris world. Just installed the version 8 and found that the time is off. I am in the Central time zone. In the beginning, the date and time was off by a day. After changing the /etc/default/init, there is no avail. The date is now correct but the time is still 5 hours... (7 Replies)
Hi all
We are currently using AIX 5.3, we reuquire to change the time according to the daylight saving scenario. We are using the internal clock and are not synced with ntp server. Can any one please tell me how to do that without effecting the processes running on the servers? (2 Replies)
Hi all,
I want change the time settings from EST to IST by using command line in Debian os. but it is not taken. Can any body show me the how to change the time settings by using command line.
Thanks, (1 Reply)
Hi Everyone
Just wanted to share with you that IBM AIX is having again problem with Summer Time Shift..
IBM Possible Action Required: System time may not change properly at DST start/end dates on AIX 7.1 and AIX 6.1 - United States
For me it means some additional overtimes in the... (0 Replies)
Discussion started by: gito
0 Replies
LEARN ABOUT LINUX
time
TIME(2) Linux Programmer's Manual TIME(2)NAME
time - get time in seconds
SYNOPSIS
#include <time.h>
time_t time(time_t *t);
DESCRIPTION
time() returns the time as the number of seconds since the Epoch, 1970-01-01 00:00:00 +0000 (UTC).
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.
CONFORMING TO
SVr4, 4.3BSD, C89, C99, POSIX.1-2001. POSIX does not specify any error conditions.
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 naive 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 synchronized to a standard reference. The intention is that the interpretation of sec-
onds since the Epoch values be consistent; see POSIX.1 Annex B 2.2.2 for further rationale.
SEE ALSO date(1), gettimeofday(2), ctime(3), ftime(3), time(7)COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2010-02-25 TIME(2)