Subject: Re: Lisp Date arithmetic library From: Erik Naggum <firstname.lastname@example.org> Date: Wed, 26 Jun 2002 12:35:32 GMT Newsgroups: comp.lang.lisp Message-ID: <email@example.com> * Erik Naggum > If you need to compute with days, remember that (floor <universal-time> > 86400) always decomposes into a day since 1900-01-01 and the seconds the > start of the current day. * Raymond Wiker | Except for leap seconds, no? Do you think I would lie about this or withhold essential facts or make a claim that would be true "most of the time"? "There are exactly 86400 seconds in a day, all year round" was phrased that way in order to avoid mention of the leap-second mess, but it should _still_ be crystal clear. | (Or is that not an issue with <universal-time>?) I think you should look this up and not believe me. This comes up again and again because some people have heard of leap seconds and get all confused, and unless they do some work to figure it out, they just keep asking. -- Guide to non-spammers: If you want to send me a business proposal, please be specific and do not put "business proposal" in the Subject header. If it is urgent, do not use the word "urgent". If you need an immediate answer, give me a reason, do not shout "for your immediate attention". Thank you.