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Days Until Birthday Calculator

Count down to your next birthday. Enter month and day only—no birth year required. The calculator finds the next upcoming birthday in UTC.

Select your birthday month and day.

How it works

Enter your birthday month and day. The calculator uses today’s UTC calendar date as the reference and finds the next time that date occurs.

If your birthday has not happened yet this calendar year, the target is this year’s date. If today is your birthday, you will see that message. If your birthday already passed this year, the target is next year’s date.

Weeks remaining are whole weeks (days ÷ 7, rounded down). Months remaining are approximate calendar months and days between today and the next birthday—the same style as the Age Calculator, not fixed 30-day months.

Turn on “Include today” if you want today to count as the first day toward your birthday (same idea as the Days Until Calculator).

Common uses

Birthday planning, gift shopping, party scheduling, travel for celebrations, and setting reminders for how long until the big day.

  • Birthday planning

    See how many days remain until the party or trip so you can plan invitations and bookings.

  • Gift planning

    Order gifts or send cards with enough lead time before the date.

  • Party planning

    Pick a weekend or weeknight based on how many days you have left.

  • Travel planning

    Book flights or time off around your next birthday when the countdown is short.

  • Reminders

    Check back anytime—results update automatically as the calendar day changes.

Related Countdown Calculators

The Days Until Calculator counts calendar days to any future date—or how many days ago a past date was—with an optional include-today setting for planning.

Countdown To Date adds an optional UTC time, event name, and hour/minute updates when you need more detail than calendar days alone.

Seasonal calculators target the next occurrence automatically—no date to enter. Fixed dates include Valentine's Day (February 14), Independence Day (July 4), Halloween (October 31), Christmas (December 25), and New Year's Day (January 1).

Movable US holidays use the same rules as the dynamic event pages: Mother's Day (second Sunday in May), Easter Sunday (Gregorian), Thanksgiving (fourth Thursday in November), Black Friday (the day after Thanksgiving), and Cyber Monday (the Monday after Thanksgiving).

For a live second-by-second display with hours and minutes, use the Countdown Timer when the target includes a specific time of day in UTC.

FAQ

How many days until my birthday?
Choose your month and day, then view days until your next birthday. Optional “Include today” adds the current UTC day when counting forward.
Do I need to enter my birth year?
No. Only month and day are required. The calculator always targets the next upcoming birthday, not age.
How are leap-day birthdays handled?
On February 29, the calculator uses February 29 in leap years. In non-leap years, it uses February 28 and explains that February 29 is not a calendar day in those years.
Does the calculator update automatically?
Yes. Results are based on the current UTC date when you load or change inputs, so the countdown stays accurate day to day.

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