Path: utzoo!attcan!uunet!lll-winken!ames!mailrus!ukma!rutgers!aramis.rutgers.edu!athos.rutgers.edu!christian From: !hwt@bnr-fos.uucp (Henry Troup) Newsgroups: soc.religion.christian Subject: Calendars (was Re: Christmas) Message-ID: Date: 7 Sep 89 07:02:21 GMT Sender: hedrick@athos.rutgers.edu Organization: Bell-Northern Research, Ltd., Ottawa, Canada Lines: 14 Approved: christian@aramis.rutgers.edu In article kolassa@ysidro.uchicago.edu (Kolassa) writes: > >I think the above is correct; however, the number of days by which the >Julian and Gregorian calendars disagree should be increasing. Does anyone >know why the Jan 6 date is fixed, or know that my explanation is >wrong? > >John Kolassa On average, the two calendars slip one day further out every 72 years. However, as the difference occur on the calculation of leap years at the last year of the century, the slip occured all at once once in 1900, and the next slip is 2100 AD. (2000 AD is a leap year by both systems, I think).