A discovery by The Design Prof

You know your birthday. But do you know what day of the week you were born?

I’m Janet Esquirol, a designer, educator, and Thursday baby.

I discovered that my daughter, my childhood best friend, my father, and I were all born on a Thursday. A tiny thing we’d shared all along, and I’d never known.

That discovery became 1 in 7: a playful way to explore your birth weekday, compare with people you know, and find a little unexpected common ground.

Find Your Weekday

Roughly speaking, you have a 1 in 365 chance of sharing a birthday with someone, a 1 in 12 chance of sharing a zodiac sign, and a 1 in 7 chance of sharing a birth weekday.

Which of the 7 was your birthday?

Dates you enter stay in your browser. They’re used only to find your weekday and aren’t sent to me or saved by this site.

Just curious? Try any date, you don’t have to use your own.

The Mythology

Famous People

    Songs for Your Day