Calculating the Day of the Week

The calculation of the day of the week corresponding to a given date is illustrated below.

Fill in the month, day, and year, in the left-hand column, using four digits in the year.
Then click this  button.
(Recalculation also occurs automatically whenever you change the month, day, or year,
but only after you have moved the cursor away from the field.)
Month: Month code:
Day: Day code:
Year: Year code:
Leap year Jan/Feb correction:
    largest mult. of 7
    DOW code:
    Day of Week:
Some special dates:


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