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Day of the Week Calculator

TOP/Calendar/Date and Day of the Week
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Determines the day of the week from a date (year, month, and day) in the Gregorian calendar or the Japanese calendar (Meiji era and later).
Year
Month
Day
Japanese-era date input is available from January 1 of Meiji 6, when the Gregorian calendar was adopted in Japan. The pop-up calendar is available for dates on or after October 15, 1582, when the Gregorian calendar was adopted.

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