How many days until March 15?
See the exact days, hours, minutes, and seconds remaining until March 15. The countdown updates every second using your local timezone.
March 15 date facts
Key calendar details for the next occurrence of March 15.
About March 15
March 15 is the 60th day of the year in the Gregorian calendar (61st in a leap year), marking the traditional start of meteorological spring in the Northern Hemisphere. It sits at the transition from winter to spring, which is why many seasonal schedules, school terms, and fiscal planning cycles reference it.
Historically, March was the first month in the early Roman calendar — hence the name from Martius (Mars) — before January and February were added. March 15 therefore carried New Year significance in ancient Rome, but in the modern Gregorian calendar the year begins on January 1.
For planning today, March 15 is a fixed annual date: it occurs on the same calendar date every year and is always 1 day after March 14 and 1 day before March 16. That makes the countdown predictable and useful for quarterly deadlines, spring launches, and academic calendars.
Why track how many days until March 15?
A fixed early-spring anchor used for personal, academic, and business planning.
No verified international observances are listed specifically for March 15. This section will be updated as curated data becomes available.
What’s special about March 15?
Important observances, events, traditions, and historical milestones associated with March 15.
How the countdown works
We create March 15 at 00:00 in your local timezone for this year. If that moment has already passed, we roll to March 15 next year.
All calculations use your device clock and local timezone, so the countdown hits zero exactly when March 15 starts where you are.
Remaining milliseconds are converted to days, hours, minutes, and seconds. Values never go negative and update every second.
Leap years are handled automatically by the calendar — the interval from March 15 to next March 15 is 365 or 366 days as appropriate.
If today is after March 15, the timer counts toward next year’s March 15 and shows how many days ago the last one occurred.
The timer is scoped to this component, accessible, and works on mobile without external libraries.
Related countdown dates
Nearby dates and same-day links around March 15.
March 15 countdown FAQ
The countdown above shows the exact days, hours, minutes, and seconds until the next March 15 in your local timezone.
Divide the remaining days by seven. The Date Facts section also shows weeks remaining.
March 15 falls on a different weekday each year. See Date Facts for this occurrence’s weekday.
We take the next March 15 at 00:00 local time, subtract the current local time, and convert the difference into days, hours, minutes, and seconds.
Yes. It uses your device’s local timezone, so it reaches zero precisely when March 15 begins for you.
It automatically counts down to March 15 of the following year and shows how many days ago the last March 15 occurred.
March 15 is the start of meteorological spring in the Northern Hemisphere and is observed as Zero Discrimination Day and World Seagrass Day (UN), St. David’s Day in Wales, and the anniversaries of Nebraska statehood and Yellowstone National Park.
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