What Day of the Week Was I Born?
Enter your date of birth to discover the exact day of the week you were born — and jump to your full age breakdown if you'd like more.
More about your birth date
Knowing your birth weekday is a fun detail, but there's much more you can discover. Use the Age Calculator for your exact age in years, months and days, your total days lived, next birthday countdown, and zodiac sign. Or visit How Old Am I? for a quick age lookup.
Frequently asked questions
How do you know what day I was born?
Every calendar date maps to exactly one day of the week. We compute it directly from your birth date using the standard Gregorian calendar, so it's always correct.
Does this work for old dates?
Yes, for dates on the modern (Gregorian) calendar. Be aware that countries adopted the Gregorian calendar at different times, so very old historical dates may differ from local records of the era.
Why does the weekday matter?
It's a fun fact many people like to know, and it's handy for planning milestone birthdays — for example, checking which years your birthday lands on a weekend.