A word for "people who were born on the same day from different mothers"

What could be a word for people who are born on the same day but are not siblings?

I am creating a website and matching my college students who were born on same day. I need an appropriate or the closest equivalent word in English to describe that situation. A word or short expression that I could use as its domain name.

I'm not expecting the exact word for this situation, but at the very least it should be an appropriate and acceptable one, even a short phrase will do but its meaning must be comprehensible to visitors to the website.

I need a single word or combination of two words that should be very catchy for the audience.

Can anyone help?

Solution 1:

I've heard the phrase "cosmic twin" be used for such folks. "Oh, your birthday is August 1, 1982? So is mine! We're cosmic twins!"

Solution 2:

what about these suggestions?

"birthday twins" (born on the same day & same month)

"birthdate twins" (born on the same day & same month & same year)

"time twins" (born on the same day & same month & same year)

btw. there is a similar website with people born on the same day (same date) - https://birthdays.astro-seek.com

Solution 3:

My late mother-in-law used to call them "Fairy Twins"! I still use the expression now.