About the Day of the Week Calculator
What day was I born on? What day is Christmas next year? Enter any date to see its day of the week, how far it is from today, its day of the year and week number, and the same date in other years.
Key features
- Day of the week for any date
- Days from today
- Day of the year and ISO week number
- Quarter and leap year
- The Hijri (Islamic) date
- Same date's weekday in other years
What day was it?
Find the day of the week for birthdays, anniversaries, historical events or future plans. Enter any date to see its weekday and more.
Famous dates
| Date | Day |
|---|---|
| 1 January 2000 | Saturday |
| 14 August 1947 | Thursday |
| 20 July 1969 (Moon landing) | Sunday |
| 25 December 2026 | Friday |
| 1 January 2027 | Friday |
Why weekdays repeat
The Gregorian calendar repeats exactly every 400 years. Within that cycle, calendars for whole years repeat after 6, 11 or 28 years, which is why you can sometimes reuse an old calendar.
Related tools
Week number, age calculator, and date difference calculator.
How to use the Day of the Week Calculator
- Pick a date, a time or the cities you want; your own time zone is filled in for you.
- Search for any city or time-zone name such as EST, GMT or PKT.
- Results update instantly as you change anything.
- Your city lists are remembered in this browser for next time.