Day of Week

Day of week for any Gregorian date (Sakamoto method).

Inputs

Year

Month

Day

Tab to move between fields

Results

Weekday

Friday

Index (0=Sun)5

How to Use This Calculator

Enter a four-digit year.
Enter the month (1-12) and day (1-31).
The calculator uses the Sakamoto algorithm to determine the day of the week for any Gregorian date.
View the weekday name and numeric index (0 = Sunday through 6 = Saturday).

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