Re: daylight savings time
On Wed, 14 Mar 2007 04:54:44 -0600
Hugo Vanwoerkom <hvw59601@care2.com> wrote:
> John Hasler wrote:
> > Marty Landman writes:
> >> I've got NTP running...
> >
> > NTP has nothing to do with DST. The servers send UTC. It is up to
> > the clients to deal with their time zones.
> >
> >> Only problem is that I am getting the time as an hour earlier than
> >> it really is, since the new daylight savings time here in the US
> >> went into effect over the weekend.
> >
> > What Debian version are you running? Is it up to date? What is
> > the output of 'zdump -v America/New_York | grep 2007'?
>
> Thanks John, this is a response in the best tradition of LDU: I did
> not know of this command :-(
>
> America/New_York Sun Mar 11 06:59:59 2007 UTC = Sun Mar 11 01:59:59
> 2007 EST isdst=0 gmtoff=-18000
> America/New_York Sun Mar 11 07:00:00 2007 UTC = Sun Mar 11 03:00:00
> 2007 EDT isdst=1 gmtoff=-14400
> America/New_York Sun Nov 4 05:59:59 2007 UTC = Sun Nov 4 01:59:59
> 2007 EDT isdst=1 gmtoff=-14400
> America/New_York Sun Nov 4 06:00:00 2007 UTC = Sun Nov 4 01:00:00
> 2007 EST isdst=0 gmtoff=-18000
>
> and 'zdump -v America/Mexico_City | grep 2007' where I am:
>
> America/Mexico_City Sun Apr 1 07:59:59 2007 UTC = Sun Apr 1
> 01:59:59 2007 CST isdst=0 gmtoff=-21600
> America/Mexico_City Sun Apr 1 08:00:00 2007 UTC = Sun Apr 1
> 03:00:00 2007 CDT isdst=1 gmtoff=-18000
> America/Mexico_City Sun Oct 28 06:59:59 2007 UTC = Sun Oct 28
> 01:59:59 2007 CDT isdst=1 gmtoff=-18000
> America/Mexico_City Sun Oct 28 07:00:00 2007 UTC = Sun Oct 28
> 01:00:00 2007 CST isdst=0 gmtoff=-21600
>
> Bingo!
>
> Hugo
Congratulations.
I'm living in the Turks & Caicos Islands (in the sunny Caribbean).
Running Debian Testing which is kept up to date.
"zdump -v America/Grand_Turk | grep 2007" gives me :
117:America/Grand_Turk Sun Apr 1 04:59:59 2007 UTC = Sat Mar 31
23:59:59 2007 EST isdst=0 gmtoff=-18000
118:America/Grand_Turk Sun Apr 1 05:00:00 2007 UTC = Sun Apr 1
01:00:00 2007 EDT isdst=1 gmtoff=-14400
119:America/Grand_Turk Sun Oct 28 03:59:59 2007 UTC = Sat Oct 27
23:59:59 2007 EDT isdst=1 gmtoff=-14400
120:America/Grand_Turk Sun Oct 28 04:00:00 2007 UTC = Sat Oct 27
23:00:00 2007 EST isdst=0 gmtoff=-18000
all of which is patently untrue, in that the TCI Government in their
infinite wisdom have chosen to follow the absurd (for us) US adjustments
to the DST dates.
Presumably this occurs because the Grand_Turk information
in /usr/share/zoneinfo has not been correctly updated. How can I go
about getting this right?
Thanks to all the participants in the thread. I've been wrestling with
this problem since the recent time change, and have not been able to
resolve the issue up to now, but I now see the source of the problem.
Chris Dunn
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