11-03-2008
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hello!
I'm currently working on a climatological dataset that uses unix-timestamp and a real date like 28/03/2004 02:45:00 h. in spring the unix-timestamp follows its continuos mode but in the column of the real date the time jumps one hour forward (e.g. from 1:59:59 to 3:00:00). i think this is... (1 Reply)
Discussion started by: softmachine
1 Replies
2. Solaris
hi ...
i have an E450 sun server that is running solaris 6 . i want to disable daylight savings on my server .
My question is :
1) how to know that my server is running daylight savings ?
2) how to disable it ?
my zoneinfo file contains the following
# @(#)init.dfl 1.2 92/11/26
#
#... (1 Reply)
Discussion started by: ppass
1 Replies
3. AIX
On AIX 5.1, after applying a DST patch or workaround, is there a way to test that the DST changes have taken effect? (1 Reply)
Discussion started by: dangral
1 Replies
4. AIX
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? (1 Reply)
Discussion started by: masquerer
1 Replies
5. UNIX for Dummies Questions & Answers
Hi everybody...
I am using IBM unix server . Server take time options from satellite but server is not include true setting . What can I do? (2 Replies)
Discussion started by: deox
2 Replies
6. Linux
Hi folks,
I would like to read the start date and end date of the Daylight Saving Time for the given timezone in the given year. What's the function in C/C++ to read the start of the Daylight Saving date and end of Daylight saving date?
I'm using Linux 2.6.xx Kernel.
For Example, in... (4 Replies)
Discussion started by: suryaemlinux
4 Replies
7. Linux
Hi,
I have few doubt on daylight saving.
Can any one clarify the below points.
1) How to configure daylight saving(DLS) time ?
2) How to query DLS ?
3) If i set DLS(say some how) will it be autometically changed or user has to manually change system time ?
I got few info on net about... (3 Replies)
Discussion started by: ashokd001
3 Replies
8. Linux
Hello
Can sombody please tell me how linux handles DST ( daylight saving time) ?
Does the time change instantly , ex: if is is 3'o clock does linux instantly swich to 2'o clock ?
plese give more info about this toppic (2 Replies)
Discussion started by: martonlorand
2 Replies
9. Solaris
Hello,
Quick question: How do I verify if my Solaris 11 hosts/zones, configured with NTP, would change automatically to the DST?
Thanks! (1 Reply)
Discussion started by: feroccimx
1 Replies
rtc(1M) System Administration Commands rtc(1M)
NAME
rtc - provide all real-time clock and GMT-lag management
SYNOPSIS
/usr/sbin/rtc [-c] [-z zone-name]
DESCRIPTION
On x86 systems, the rtc command reconciles the difference in the way that time is established between UNIX and MS-DOS systems. UNIX systems
utilize Greenwich Mean Time (GMT), while MS-DOS systems utilize local time.
Without arguments, rtc displays the currently configured time zone string. The currently configured time zone string is based on what was
last recorded by rtc-z zone-name.
The rtc command is not normally run from a shell prompt; it is generally invoked by the system. Commands such as date(1) and rdate(1M),
which are used to set the time on a system, invoke /usr/sbin/rtc -c to ensure that daylight savings time (DST) is corrected for properly.
OPTIONS
-c This option checks for DST and makes corrections if necessary. It is normally run once a day by a cron job.
If there is no RTC time zone or /etc/rtc_config file, this option will do nothing.
-z zone-name This option, which is normally run by the system at software installation time, is used to specify the time zone in which
the RTC is to be maintained. It updates the configuration file /etc/rtc_config with the name of the specified zone and the
current GMT lag for that zone. If there is an existing rtc_config file, this command will update it. If not, this command
will create it.
FILES
/etc/rtc_config The data file used to record the time zone and GMT lag. This file is completely managed by /usr/sbin/rtc, and it is
read by the kernel.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Architecture |x86 |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO
date(1), rdate(1M), attributes(5)
SunOS 5.10 3 Oct 2003 rtc(1M)