About

Tanjoubi helps you check whose birthday it is, no matter which timezone you are in.

See today’s, tomorrow’s, and yesterday’s birthdays for K-POP idols and celebrities, and browse by month or day when you need more detail.

9 languagesTimezone awareMonth & day cards

Jump to yesterday, today, or tomorrow

Quickly check celebrity birthdays for yesterday, today, and tomorrow, then keep browsing nearby dates.

Yesterday's birthdaysToday's birthdaysTomorrow's birthdays

What we provide

The experience is designed to surface the birthdays you need right now while keeping nearby dates within reach.

Today, tomorrow, yesterday

Birthday lists adjust to your timezone so the dates you see are always accurate.

Calendar-style discovery

Use month cards and day pages to jump directly to the date you are interested in.

Multilingual UI

Nine languages are available so you can browse in the language you prefer.

Our principles

These guidelines keep the birthday data reliable for everyone.

Precise time context

We detect your timezone to clarify what “today” means for you before showing any birthday list.

Usability first

Clean layouts and readable cards make the experience quick on desktop and mobile alike.

Continuous upkeep

Data and translations are refreshed regularly, and we welcome corrections from the community.

Get started

Find the birthdays you need in a few clicks

  1. 1

    Visit the home page to see whose birthday is being celebrated right now.

  2. 2

    Open a month or day card to explore a specific date in more detail.

  3. 3

    Use the contact page if you have questions or spot information that needs an update.