Date: Mon, 30 Mar 1998 23:16:08 +1000 From: Bruce Evans <bde@zeta.org.au> To: ache@FreeBSD.ORG, helbig@Informatik.BA-Stuttgart.DE Cc: freebsd-bugs@FreeBSD.ORG Subject: Re: bin/6164 Message-ID: <199803301316.XAA29255@godzilla.zeta.org.au>
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>Hmm. The reason for this warning message (``non existent UCT time'') >is an erraneous use of mktime(3): mktime(3) *always* assumes >that the passed tm structure (utc) holds *local* time, even if the >parameter is filled by gmtime(3). >At March 29th 4:01 CEST gmtime() put 2:01 into utc, which is correct. >Then mktime(3) assumes March 29th 2:01 *local* time which does not exist. Isn't that the point of using local time? The purpose of `adjkerntz -a' is to adjust the RTC to local time when DST changes. The adjustment can't be done if it would give a nonexistent time or an ambiguous time. mktime() happens to handle nonexistent times in a convenient way (by failing; it's not clear what else it could do). I think there are more problems with ambiguous times when DST starts, since mktime() doesn't fail then. Bruce To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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