Find out which day of the week any date falls on — past, present, or future — along with the day of the year and whether it is a leap year.
How it works
- Choose the date you want to query.
- The calculator queries the Gregorian calendar for that exact day.
- Read the resulting day of the week and day of the year.
Frequently asked questions
What day was I born?
Enter your birth date to see the weekday. January 1, 2000, for example, was a Saturday.
Does it handle old dates?
Yes, within the standard proleptic Gregorian calendar that modern date systems use.
What is the day of the year?
The count of days since January 1 — useful for scheduling and data work (1 to 365, or 366 in leap years).