Xref: utzoo comp.databases:6994 comp.software-eng:4112 Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!rpi!uupsi!psivax!torkil From: torkil@Pacesetter.COM (Torkil Hammer) Newsgroups: comp.databases,comp.software-eng Subject: Re: Calendar Algorithm Keywords: calendar algorithm Message-ID: <1990Aug30.182954.19806@Pacesetter.COM> Date: 30 Aug 90 18:29:54 GMT References: <140352@sun.Eng.Sun.COM> <669@dbase.A-T.COM> <1115@nixsin.UUCP> <598@oglvee.UUCP> Organization: Pacesetter Systems Inc., Sylmar, CA Lines: 15 # # The Collected Algorithms of the ACM are in four volumes, with updates # quarterly, and costs US $150 for ACM members. I really hope that the ACM algorithm is identical to the Julian Day Number used by astronomers. We don't need another day by day calendar. Mon, Jan 1, 1990 in the gregorian calendar we use is JD 2447893, though the definition really is that JD 0 is Mon, Jan 1, 4713 BC in the (proleptic) julian calendar, that was used before the gregorian. Specifically JD 0.0 is defined to be noon GMT on that day. Can anyone with knowledge of the ACM algorithm confirm? Torkil Hammer