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Day of the Week Calculator

Calculate what day of the week (Monday, Sunday, etc.) any past or future date falls on, with key calendar facts.

Day of the Week
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Calendar Quick Facts

  • Leap Year: —
  • Day of Year: —
  • Days Remaining in Year: —
  • Year Percentage Elapsed: —

Perpetual Calendar Day of the Week Finder

Have you ever wondered: What day of the week was I born? or On what day will Christmas fall in 2030? This weekday calculator finds the exact day of the week for any date in history or the future.

Our perpetual calendar math handles calendar conversions and leap years instantly, providing you with important contextual metrics like day number of the year and percentage elapsed.

Frequently Asked Questions

Yes, you can enter any historical date to find its corresponding day of the week (e.g. July 4, 1776 fell on a Thursday).

It is helpful for planning events, retroactively checking records, or researching family history and birthdays.