OneTapTimer
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Personal date countdown

Birthday Countdown

See exactly how long until a birthday, anniversary, or celebration. Enter any date and the countdown updates every second on your device.

Choose a date

How it works

  1. Select the birthday or event date from the calendar.
  2. Click Start countdown.
  3. The timer shows days, hours, minutes, and seconds remaining.
  4. The countdown updates every second using your device's local time.

All local, no signup

This countdown runs entirely on your device. Your date choice stays local—nothing is uploaded or stored. Times are calculated using your timezone.

Use cases

  • • Birthdays and celebrations
  • • Anniversaries and milestones
  • • Vacations and trips
  • • Concerts, events, and releases
  • • Shared countdowns for families

More options

Try the custom date countdown tool for more control, or explore popular countdowns like Christmas and New Year.