Daylight saving Eastern Time end
Hi guys.
We have some linux servers, when I got the job, the servers were already configured. Florida. The servers are using NTP, but how can I be sure that on November 3 (when Daylight Saving Time ends) every servers is gonna update the time correctly? my /etc/sysconfig/clock shows: ZONE="America/New_York" UTC=false ARC=false date: Mon Oct 21 12:46:02 EDT 2013 On november 3rd at 2am the clocks are turned backward 1 Thanks |
Make sure you have the latest tzdata package available for whatever distro you are running.
Then check with Code:
zdump -v America/New_York | grep 2013 |
You could also use date
Code:
$ date |
FYI
UTC=false just means the hardware clock is set to local time arc=false means that the system is using the standard Unix epoch i.e. 00:00:00 1 Jan 1970. ntp uses UTC and so the time displayed on your servers is based upon the configured timezone. If your servers are kept updated then they should have the current time zone data which can be verified as stated above. The timezone file being used is /etc/localtime which should be a copy of the America/New_York in your case. |
If I run zdump it is what I get, I guess with this the server should update/change the time automatically on November 3, right?
or should I do something else. Regarding the NTP configuration, is there anything that should be changed? Quote:
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the date is close, do you guys think I need to configure something else or it should be change automatically on Nov 3?
thanks |
Nope, It should change automatically.
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thank you so much. that helped me.
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Coordially |
Excellent suggestion there, "eggroll." (Love the nick.) :D
Here's the bottom-line on this:
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Actually NTP sets the system clock but the kernel if configured will keep the hardware clock updated every 11 minutes. I believe this is still an accurate statement...
http://www.ntp.org/ntpfaq/NTP-s-trbl-spec.htm |
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