Date conversion question

[mkhaw at teknowledge-vaxc.UUCP]

Is there a clever formula that will give you the day of the week (as a number
between 1 and 7 or 0 and 6) given year, month, and date?

I've only been able determine day of week from date by using a reference date
like: Jan. 1, 1972, was a Saturday -- and computing the offset from it (and
keeping track of leap days).

Mike Khaw


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