How Many Days Until My Birthday?

How many days until my birthday depends on whether it has passed this year: a December 5 birthday is 46 days away on October 20, 2026. Enter yours for a live countdown, the weekday it falls on and, with a birth year, the age you will turn.

How many days until my birthday once it has passed?

Once this year’s date has gone by, the count runs to next year’s. A March 14 birthday checked on October 20, 2026 rolls to Sunday, March 14, 2027, 145 days away. On the birthday itself the result reads “Today”, and the live clock moves on to the next one.

The days figure changes at midnight, while the live countdown ticks every second down to midnight at the start of the birthday. Add a birth year and the result names the age you will turn: the next birthday’s year minus the birth year. Born in 1996, a December 5 birthday in 2026 is a 30th. To see how many days old you are instead, enter the full birth date in the days-since counter.

For a one-off date, such as a wedding or a due date, the date countdown calculator counts without rolling over to the next year.

What day of the week is my birthday?

Your birthday moves one weekday later each year, or two weekdays later when a February 29 falls in between. A common year has 365 days, which is 52 weeks and 1 day, so the same date shifts by one weekday. A leap year has 366 days, which is 52 weeks and 2 days.

Year	December 5 falls on	Shift from the year before
2026	Saturday	—
2027	Sunday	1 day
2028	Tuesday	2 days, because February 29, 2028 falls in between
2029	Wednesday	1 day
2030	Thursday	1 day

Birthdays on February 29

In years without February 29, this countdown counts a leap-day birthday on February 28 by default, and a switch moves it to March 1. The National Institute of Standards and Technology (NIST) notes that people born on February 29 often celebrate on either date in common years. The switch changes only the countdown, so pick the date you actually celebrate.

The real date comes back every 4 years, except across most century years. 2100 is not a leap year, so someone born on February 29, 2096 waits 8 years, until 2104, for the next one. The leap-year guide explains the century rule. The next February 29 falls in 2028.

Year	Days in February	A February 29 birthday is counted on
2026	28 days	February 28, or March 1 with the switch
2027	28 days	February 28, or March 1 with the switch
2028	29 days	February 29
2029	28 days	February 28, or March 1 with the switch
2030	28 days	February 28, or March 1 with the switch

For legal dates, such as a license renewal or an age limit, check which date applies with the agency involved. This page counts calendar days only.

When the countdown reaches zero

The countdown ends at midnight at the start of your birthday on your device’s clock, in the time zone named in the result. Midnight arrives in New York 3 hours before it arrives in Los Angeles, so two people with the same birthday finish their countdowns at different moments.

The live countdown is only as accurate as your device’s clock. NIST’s time.gov service shows how far a device clock is from official U.S. time, and NIST recommends the operating system’s automatic time setting to keep a computer clock correct.

Frequently asked questions

Why does the live countdown show one day fewer than the days count?

The days count compares calendar dates, while the live countdown measures the exact time left. At 2:00 PM, a birthday 46 days away shows 45 days and 10 hours.

Does the page remember my birthday?

Yes, through the page address. Your entries are saved in the link, so a bookmark opens the same countdown next time, and nothing is stored on a server.

Your year between birthdays