Date: Mon, 18 May 1998 13:47:00 -0400 (EDT) From: Cliff Addy <fbsdlist@federation.addy.com> To: questions@FreeBSD.ORG Subject: Year 2038 or 2106? Message-ID: <Pine.BSF.3.95q.980518133734.23393A-100000@federation.addy.com>
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I'd always read that fbsd was good until at least 2038, as far as date/time computations, since the time is stored as a 32-bit integer of seconds since the Jan 1, 1970. Just on a whim, I decided to check this. I took 2^32/60/60/24/365 and added that to 1970. Now, I know I didn't account for leap years, but I still come out to the 2106, not 2038. I always assumed that an *unsigned* integer was used, if I use a signed integer I get 2^31/60/60/24/365 plus 1970 which *does* yield 2038. So, I guess my questions are: Is the date an unsigned or signed integer? If signed, why? If unsigned, why isn't the "date of death" 2106? Or did I just completely misunderstand or miscalculate? Too much time on my hands ... Cliff To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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