![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
gendaliaI have something in my reminder file about making sure my machines have the updated time zone files. Thinking about it, I thought I should remind others about it, so no one is surprised.
For digital unix, netbsd, linux, solaris, and ultrix (all I've checked so far) this will tell you if you have the current (and correct) zone file:
# zdump -v US/Central | grep 2007
US/Central Sun Mar 11 07:59:59 2007 UTC = Sun Mar 11 01:59:59 2007 CST isdst=0
US/Central Sun Mar 11 08:00:00 2007 UTC = Sun Mar 11 03:00:00 2007 CDT isdst=1
US/Central Sun Nov 4 06:59:59 2007 UTC = Sun Nov 4 01:59:59 2007 CDT isdst=1
US/Central Sun Nov 4 07:00:00 2007 UTC = Sun Nov 4 01:00:00 2007 CST isdst=0
A not updated machine will look like:
% /usr/sbin/zdump -v US/Central | grep 2007
US/Central Sun Apr 1 07:59:59 2007 UTC = Sun Apr 1 01:59:59 2007 CST isdst=0
US/Central Sun Apr 1 08:00:00 2007 UTC = Sun Apr 1 03:00:00 2007 CDT isdst=1
US/Central Sun Oct 28 06:59:59 2007 UTC = Sun Oct 28 01:59:59 2007 CDT isdst=1
US/Central Sun Oct 28 07:00:00 2007 UTC = Sun Oct 28 01:00:00 2007 CST isdst=0
As far as I know, anything that still gets updates from Microsoft (for those of you who must use Windows) should have gotten the updates quite a while ago. I suspect that even those versions that don't get updates from Microsoft will have patches available somewhere, but digging may be required.
For digital unix, netbsd, linux, solaris, and ultrix (all I've checked so far) this will tell you if you have the current (and correct) zone file:
# zdump -v US/Central | grep 2007
US/Central Sun Mar 11 07:59:59 2007 UTC = Sun Mar 11 01:59:59 2007 CST isdst=0
US/Central Sun Mar 11 08:00:00 2007 UTC = Sun Mar 11 03:00:00 2007 CDT isdst=1
US/Central Sun Nov 4 06:59:59 2007 UTC = Sun Nov 4 01:59:59 2007 CDT isdst=1
US/Central Sun Nov 4 07:00:00 2007 UTC = Sun Nov 4 01:00:00 2007 CST isdst=0
A not updated machine will look like:
% /usr/sbin/zdump -v US/Central | grep 2007
US/Central Sun Apr 1 07:59:59 2007 UTC = Sun Apr 1 01:59:59 2007 CST isdst=0
US/Central Sun Apr 1 08:00:00 2007 UTC = Sun Apr 1 03:00:00 2007 CDT isdst=1
US/Central Sun Oct 28 06:59:59 2007 UTC = Sun Oct 28 01:59:59 2007 CDT isdst=1
US/Central Sun Oct 28 07:00:00 2007 UTC = Sun Oct 28 01:00:00 2007 CST isdst=0
As far as I know, anything that still gets updates from Microsoft (for those of you who must use Windows) should have gotten the updates quite a while ago. I suspect that even those versions that don't get updates from Microsoft will have patches available somewhere, but digging may be required.
