Can I enter dates in Japanese era format?

Currently supports only Gregorian date input. Convert Japanese era dates to Gregorian first.

How is the weekday calculated?

Accurately calculated using Zeller's formula and calendar calculation algorithms.

Is the birth weekday personality connection real?

No scientific basis, but many cultures have traditions about birth weekdays — enjoy it as fun trivia.

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Birthday Weekday Finder

Find out what day of the week you were born on. Also shows birthday trivia and the weekday of your next birthday.

Enter Date of Birth

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How to Use

Step 1

Enter Birthdate

Enter your date of birth

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Step 2

Calculate Weekday

The day of the week is calculated automatically

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Step 3

Check Result

Review your birth weekday and related information

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Features

Instant Result

Instantly find the weekday just by entering a date

Birthday Trivia

Shows fun facts and personality traits related to your birth weekday

Next Birthday

Also shows what day of the week your next birthday falls on

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FAQ

Supports dates from October 15, 1582, when the Gregorian calendar was adopted.

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