Enter your date of birth to see a live countdown to your next birthday, plus the weekday and age you will turn.
Birthday Countdown
The live countdown updates every second after you start it.
This birthday countdown uses your selected date of birth and the current local date.
Your countdown will appear here
Choose a date of birth, then start the countdown to see days, hours, minutes, and seconds remaining.
Birthday countdown
Choose a date of birth, then start the countdown to see days, hours, minutes, and seconds remaining.
days left = next birthday date − todayThe calculator finds the next occurrence of your birth month and day, then counts the calendar days and live time remaining until that birthday. The birthday countdown display updates in real time so you can see the days, hours, minutes, and seconds left.
| Symbol | Variable | Description |
|---|---|---|
| DOB | Date of birth | Your birth month, day, and year. |
| today | Current date | The date used to count days remaining. |
Enter your date of birth
Choose the month, day, and year you were born.
Start the countdown
The tool finds whether your birthday is later this year or next year, then starts the live countdown.
Read the countdown
See days left, hours, minutes, seconds, the birthday weekday, and the age you will turn.
If you know your date of birth, your birthday is the same month and day each year. The useful question is usually how many days are left until the next one and what day of the week it will be.
If you want to calculate a birthday countdown by hand, find the next occurrence of your month and day, subtract today from that date, and count the remaining days. For a live countdown, the page does the math for you and refreshes the timer automatically.
A birthday countdown calculator is useful when the date itself is known but the planning details are not. Users usually want to know how many days remain, whether the birthday lands on a weekend, and what age they will turn.
Searches such as 'when is my birthday if I am 16' are missing key information. Age tells you the year range, but it does not identify the month and day. You need the date of birth or at least the birth month and day to calculate the next birthday.
People born on February 29 may celebrate on February 28 or March 1 in non-leap years depending on personal, cultural, or legal preference. This simple calculator uses the calendar date selected by the browser date input.
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