Computer bugs in the year 2000
Theo van der Storm
tstorm at vu44.UUCP
Mon Feb 4 02:08:10 AEST 1985
In article <7927 at brl-tgr.ARPA> ron at brl-tgr.ARPA (Ron Natalie <ron>) writes:
>> For those of you fixing things in your software:
>>
>> The year 2000 *is* a leap year, despite what many algorithms tell you.
>> The year 2400 is *not* a leap year.
>>
>> With minimal effort, you can make things work until 2399. You may be
>> subject to complaints after that.
>>
>Now you've really got me confused. Why is 2400 not a leap year?
(msd = mean solar day)
1 year = 365.2422 msd = 365 + 1/4 - 1/100 + 1/400 + error
That's why we have:
leapyear 1 out of 4
non leap year 1 out of 100
leapyear 1 out of 400 (So 2400 is a leap year.)
Read any basic astronomy book.
--
Theo van der Storm, 52 20'N / 4 52'E, {seismo|decvax|philabs}!mcvax!vu44!tstorm
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