Free Day of Week Calculator - Find Any Day
Find what day of the week any date falls on - past, present, or future. Discover what day you were born or when future events will occur.
Quick Answer
The calendar follows a 28-year cycle (leap year pattern). Famous dates: July 4, 1776 was Thursday. December 25, 2024 is Wednesday.
Key Facts about Day of Week Calculator:
- Calendar repeats every 28 years
- January 1, 2000 was Saturday
- Leap years shift days by 2
- Non-leap years shift by 1
- Works for dates centuries in the past/future
Why Use Our Day of Week Calculator?
Find any day:
Any Date
Past, present, or future.
Birthday Finder
What day you were born.
Historical Dates
Famous dates in history.
Future Planning
Plan upcoming events.
Instant Results
Get day immediately.
100% Private
Your dates stay private.
How to Day of Week Calculator in 3 Easy Steps
Find the day:
Enter Date
Any date you want to check.
Calculate
Compute day of week.
See Result
Get the weekday name.
Common Use Cases for Day of Week Calculator
Perfect for:
Frequently Asked Questions
Everything you need to know about our day of week calculator
What day of the week was I born?
Enter your birth date to find out instantly
Enter your birth date in the calculator to find out. The calculator works for any date in history, accounting for calendar changes and leap years.
How does the calculation work?
Mathematical formula accounting for leap years and calendar rules
The algorithm accounts for the year, month, day, century, and leap years. It uses Zeller's congruence or similar mathematical formulas to determine the day.
Do the same dates fall on the same day each year?
No, shifts 1-2 days per year; repeats every 28 years
No. Dates shift by 1 day each regular year and 2 days after leap years. The calendar repeats every 28 years (the leap year cycle).
Still have questions? Try the tool yourself!
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