Re: YEAR 2000 Problem with existing Databases
From: Michael Kiesel <mkie_at_izb.de>
Date: 1996/01/17
Message-ID: <4dj329$q94_at_izb.izb.de>#1/1
Date: 1996/01/17
Message-ID: <4dj329$q94_at_izb.izb.de>#1/1
proberts_at_isc901.jsc.nasa.gov (Paul Roberts) wrote:
>BTW, you should know that the year 2000 is NOT a leap year in the
>Gregorian calendar!!! I know that its divisible by four, but there's
>this little exception to that rule that says if its divisible by 400,
>its not really a leap year.
Well, this is simply NOT true. The correct rules are:
- year MOD 4 = 0 --> is leap year
- year MOD 100 = 0 --> is no leap year
- year MOD 400 = 0 --> is leap year
(where year is 4-digit of course!)
eg. 1996 is a leap year
1900 was NO leap year
2000 will be a leap year
Rule 2) & 3) cause that between 1901 and 2099 every 4th year IS a leap year. So you get correct results when you use just rule 1) here ...
Hope this helps to clear up any possible confusion.
-- Michael Kiesel mkie_at_izb.deReceived on Wed Jan 17 1996 - 00:00:00 CET