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Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Stephen Hoffman <seaohveh@hoffmanlabs.invalid> Newsgroups: comp.os.vms Subject: Re: VMS Software Bootcamp 2024 Date: Thu, 26 Sep 2024 13:43:52 -0400 Organization: HoffmanLabs LLC Lines: 27 Message-ID: <vd46go$ak1l$1@dont-email.me> References: <vc1uc1$vrpj$1@dont-email.me> <vc1v5l$svaa$1@dont-email.me> <vc21ar$pk50$1@dont-email.me> <vc97va$2r783$1@dont-email.me> <vccm3q$3lvi8$1@dont-email.me> <vcd21c$3nnaq$1@dont-email.me> <vcek5e$2lif$1@dont-email.me> <vch525$id7o$2@dont-email.me> <vcvn79$3d9j9$1@dont-email.me> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Thu, 26 Sep 2024 19:43:52 +0200 (CEST) Injection-Info: dont-email.me; posting-host="0c3329e7a44c7a73d17189e6cd74a59f"; logging-data="348213"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/fzRYjhJpQ9XvBG869ohDVl5i9kAhFFxw=" User-Agent: Unison/2.2 Cancel-Lock: sha1:mLkUx5E35qyWc6eAcN1DC65ULeI= Bytes: 1932 On 2024-09-25 00:58:18 +0000, Arne Vajh�j said: > On 9/19/2024 8:22 AM, Simon Clubley wrote: >> >> VMS date/time formats are much more readable, but the main problem with >> VMS timekeeping is that it doesn't have a local timezone offset from a >> base GMT/UTC timepoint built into it. > > What is SYS$TIMEZONE_DIFFERENTIAL then? A nice rug atop a pile of poo. >> Unix got this right and VMS did not. > > VMS did not get it right in 1978 - VMS got it almost right in 1993. Having been in the related debates, compatibility blocked the fix. Having most timestamps implicitly shift by -12 to +14 hours (IIRC) was viewed as intractable for compatibility. So we got a nice rug. Which still has issues. -- Pure Personal Opinion | HoffmanLabs LLC