On Thu, 2007-02-01 at 15:15, Richard Troy wrote: > Hello All, > > it was recently brought to my attention that last year the U.S. altered > the dates when Daylight Savings Time starts and ends. Many if not most > computers presume the old change dates and therefore, if left to change > automatically, will change at the wrong times. This will be vital for > people in the database community who manage applications that need > accurate timestamps. > > You can read up on this issue here, among other places: > > http://www.washingtonpost.com/wp-dyn/content/article/2007/01/31/AR2007013102318.html?referrer=emailarticle > > I've never investigated how NTP servers handle DST changes - that is, > whether they switch with the fabrication that we have more daylight hours > or leave it to clients. Hmmm... Anybody know? It'd be nice to know that > we can trust our NTP servers to tell our systems what time it is and > therefore ignore this issue for those systems that are NTP clients. As far as I know, NTP servers run on UTC, so time zone changes are outside the realm of things they worry about.
