Day of the Week Calculator
Find the day of the week for any date.
Result
Results are estimates for general information only and are not professional advice.
What day was it?
Enter any date — past or future — and this calculator tells you which day of the week it falls on, along with the day number in the year. Handy for history, planning and settling bets.
Frequently Asked Questions
What is the Day of the Week Calculator?
Find the day of the week for any date. It runs instantly in your browser and is completely free.
Is the Day of the Week Calculator free and does it require signup?
Yes. Every calculator on Calculatis is 100% free with no registration, and the values you enter are never stored.
How accurate is the Day of the Week Calculator?
It uses standard, widely-accepted formulas. Results are reliable estimates for general use and are not a substitute for professional advice.