Re: Year 2000 leap year?

Daniel Wright <danwright@bigfoot.com> wrote in article <32DDB3FB.4003@bigfoot.com>... > Catalin Badea wrote: > > > > "Stuart Knight" <Stuart_Knight@lendlease.com.au> wrote in article > > <5beqvn$41g@cssun.mathcs.emory.edu>... > > > The year 2000 IS a leap year. > > > > > > The definition of a leap year is one that can be divided EXACTLY by > > 4, > > > and in the case of a new Century (1900, 2000, etc.) to also be > > EXACTLY > > > divisible by 400. > > > > > > > Small clarification, that shouldn't be "new Century" but "last year in a > > Century". > > > > 1900 is not the beginning of a new century, it is the end of one (the 19th > > century). > > > > Catalin > > > > -- > > Catalin Badea > > Senior Technical Architect > > Tecsys Inc. > > cat@tecsys.com > > www.tecsys.com > > include "disclaimer.4gh" > years divisible by 4 are leap years, EXCEPT for the years which are > divisible by 400, which are NOT leap years. Therefore, 2000 should NOT > be a leap year. > However, I was told (by a very unreliable source who sounded as though > he heard it from a reliable source) that 2000 was an exception, > allegedly to correct a problem with the Julian calendar. I have not > seen this "news" anywhere else, so if you know, please also respond by > e-mail as I am remiss in checking the newsgroup on a regular basis. > > Thanks, > danwright@bigfoot.com > You can look at the Naval Observatory FAQ (I forgot their address), but leap year IS skipped if it is a century year and NOT skipped if the year is evenly divisible by 400. Therefore, years divisible by 4 are leap years. years divisible by 100 are NOT. years divisible by 400 ARE. The year 2000 will be a leap year! isleapyear=(mod(d.year(),4)=0) and mod(d.year(),100)>0 or mod(d.year(),400)=0) HTH, Pepa -- Josef Dufek ISS Brno, Czech Republic