Article View: borland.public.cppbuilder.nativeapi
Article #5744Re: Datetime conversion between timezones
From: Dennis Jones
Date: Fri, 08 Jul 2005 21:58
Date: Fri, 08 Jul 2005 21:58
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"Michael Gillen" <michael@gillenconsultinggroup-nospam.com> wrote in message news:42cef33b$1@newsgroups.borland.com... > Dennis Jones wrote: > > Several timezones have the same offset from UTC, but have differing rules > > for dealing with standard/daylight times. So, if your sole piece of > > information about a timezone is its offset from UTC, you have an ambiguity > > for which there is no resolution. For instance, if you have -0700, there is > > no way to know if that refers to Mountain Standard Time (which adjusts for > > daylight savings) or US Mountain Standard Time (Arizona, which does not > > adjust for daylight savings). Sigh. > > > > - Dennis > > I beleive that here's the key that you want. > > HKLM\CurrentControlSet\Control\TimeZoneInformation Michael, You must have misread my comment. That registry data is exactly what you get when you call GetTimeZoneInformation, and has no bearing on the problem I described. How did you think it could be used to resolve the ambiguity? - Dennis
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X-Google-Thread: 10cc67,424ca78a9d71afb X-Google-Attributes: gid10cc67,public X-Google-Language: ENGLISH,ASCII-7-bit From: "Dennis Jones" <nospam@nospam.com> Newsgroups: borland.public.cppbuilder.nativeapi References: <42cec603$1@newsgroups.borland.com> <42ceea0d@newsgroups.borland.com> <42cef33b$1@newsgroups.borland.com> Subject: Re: Datetime conversion between timezones Date: Fri, 8 Jul 2005 14:58:56 -0700 Lines: 31 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 NNTP-Posting-Host: 204.200.27.7 Message-ID: <42cef722$1@newsgroups.borland.com> X-Trace: newsgroups.borland.com 1120859938 204.200.27.7 (8 Jul 2005 14:58:58 -0700) Path: arc1-ca.pugleaf.net!g2news1.google.com!news3.google.com!news.glorb.com!meganewsservers.com!feeder2.on.meganewsservers.com!news-out.newsgroups.com!propagator2-sterling.newsfeeds.com!in.nntp.be!caladan.landsraad.net!newsgroups.borland.com!not-for-mail