[Novalug] Daylight Savings Time

[Richard Mancusi]

On 3/5/07, Kevin Dwyer <kevin at pheared.net> wrote:
> On Mon, Mar 05, 2007 at 11:30:09AM -0500, Ken Kauffman wrote:
> > I hear people say the "must do", but no one has provided the justification
> > behind the "must".
> >
> > If this is an application logic problem, this makes "some" sense.  But is
> > still not clear.   Saying that something must be done without a technical
> > justification is not acceptable.
>
> I think both Mike and Eric provided good answers.  It is a local problem
> because the timezone definitions on each client are now out of date.
> NTP doesn't dictate timezone, only time wrt UTC.  (How would the NTP
> server even know where your computer is, or what timezone you want to
> display?)
>
> -kpd
>

Agreed - and to check your system:
zdump -v $(cat /etc/timezone) | grep 2007
Mine looks like this:
US/Central  Sun Mar 11 07:59:59 2007 UTC = Sun Mar 11 01:59:59 2007
CST isdst=0 gmtoff=-21600
US/Central  Sun Mar 11 08:00:00 2007 UTC = Sun Mar 11 03:00:00 2007
CDT isdst=1 gmtoff=-18000
US/Central  Sun Nov  4 06:59:59 2007 UTC = Sun Nov  4 01:59:59 2007
CDT isdst=1 gmtoff=-18000
US/Central  Sun Nov  4 07:00:00 2007 UTC = Sun Nov  4 01:00:00 2007
CST isdst=0 gmtoff=-21600

Oh, take the grep pipe off and look for 2038 :-)

-rich