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Next Birthday Countdown

Find the next occurrence of a month and day from a reference date.

Tool inputs stay in your browser · optional AI search sends your query

Good to know: Uses your reference date, not the server clock. Same-day birthdays return0days. February29uses the next actual February29rather than assuming a February28orMarch1celebration.

How to use it (step by step)

  1. 1Fill in the boxes: “Birthday month”, “Birthday day”, “Reference date”. Example numbers are already there so you can see how it works; replace them with yours.
  2. 2The result updates instantly as you type (on a phone it is below the boxes).
  3. 3The bold line is the main answer. Tap Copy next to any value to copy it.

Words to know

Age / date difference
Counting the exact years, months and days between two dates, including leap years.
Countdown / timer
A countdown shows how much time is left. A stopwatch counts up. Pomodoro = 25 minutes focus, 5 minutes rest.

More in Date & Time

Days Between DatesDays, weeks and months between two dates.Add or Subtract DaysWhat date is 30, 60 or 90 days from a date?Day of the Week FinderWhat day of the week was (or will be) any date?Business Days CalculatorWorking days (Mon–Fri) between two dates.Week Number CalculatorISO week number for any date.Countdown TimerA simple timer with an alarm sound when it ends.