2007 DST Update
From JacobAllred
Starting March 2007, Daylight Saving Time has changed in the United States.
Contents |
How to Update Windows-based Servers
- XP and higher: http://support.microsoft.com/kb/931836/#
- All others: http://support.microsoft.com/kb/914387/
How to Update Fedora/CentOS for New DST
Do I need to update?
Run this command:
Note: You may need to add "/usr/sbin/" to the front of this command.
zdump -v /etc/localtime | grep 2007
If output looks like this, then the update is already applied:
/etc/localtime Sun Mar 11 06:59:59 2007 UTC = Sun Mar 11 01:59:59 2007 EST isdst=0 gmtoff=-18000 /etc/localtime Sun Mar 11 07:00:00 2007 UTC = Sun Mar 11 03:00:00 2007 EDT isdst=1 gmtoff=-14400 /etc/localtime Sun Nov 4 05:59:59 2007 UTC = Sun Nov 4 01:59:59 2007 EDT isdst=1 gmtoff=-14400 /etc/localtime Sun Nov 4 06:00:00 2007 UTC = Sun Nov 4 01:00:00 2007 EST isdst=0 gmtoff=-18000
How do I update?
Assuming you have yum, simply update tzdata:
yum update tzdata
Symlink the appropriate timezone data file:
ln -fs /usr/share/zoneinfo/America/New_York /etc/localtime
Check to make sure the update is in place:
zdump -v /etc/localtime | grep 2007
If output looks like this, then the update worked:
/etc/localtime Sun Mar 11 06:59:59 2007 UTC = Sun Mar 11 01:59:59 2007 EST isdst=0 gmtoff=-18000 /etc/localtime Sun Mar 11 07:00:00 2007 UTC = Sun Mar 11 03:00:00 2007 EDT isdst=1 gmtoff=-14400 /etc/localtime Sun Nov 4 05:59:59 2007 UTC = Sun Nov 4 01:59:59 2007 EDT isdst=1 gmtoff=-14400 /etc/localtime Sun Nov 4 06:00:00 2007 UTC = Sun Nov 4 01:00:00 2007 EST isdst=0 gmtoff=-18000
If you don't have yum, you'll have to copy from another machine:
scp root@66.195.218.86:/usr/share/zoneinfo/America/New_York /usr/share/zoneinfo/America/New_York
