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M2TOOLKIT

Day of the Week Calculator

Find which day of the week any date was or will be.

  • Free
  • No sign-up
  • Nothing is sent or stored

Result

Jan 1, 2000
Saturday
Day of the year
1 of 366
ISO week
Week 52, 1999
Leap year?
Yes

The calculation happens instantly in your browser. The numbers you enter are not sent to our servers or saved.

How to use the Day of the Week Finder

  1. Pick any date.
  2. Read the day of the week, the day of the year and the week number.

What does this tool do?

The calculator uses the Gregorian calendar, which most of the world uses today. Ask it what day you were born, when a holiday falls next year, or the weekday of a historic event.

Why use it?

  • Find the day you were born.
  • Plan events years ahead.
  • Settle trivia debates.

Example

January 1, 2000 was a Saturday. July 4, 1776 was a Thursday.

Accuracy and limits

  • Dates before the Gregorian calendar was adopted (1582 in much of Europe, 1752 in Britain and its colonies) are shown in the extended Gregorian calendar, which may differ from records of the time.

Privacy

The calculation happens instantly in your browser. The numbers you enter are not sent to our servers or saved. There's no account to create and nothing to install.

Last reviewed by the M2Toolkit team.

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