International Day of Forests
United Nations observance on March 21 raising awareness of forest conservation.
Live countdown
How many days until March 21?
See the exact days, hours, minutes, and seconds remaining until March 21. The countdown updates every second using your local timezone.
Counting down to March 21
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Year progress toward March 21--%
Target DateMarch 21
TimezoneDetecting
Previous March 21-- days ago
Calculating time remaining until March 21…
At a glance
March 21 date facts
Key calendar details for the next occurrence of March 21.
Weekday----
Day of year--Day 60 of 365
Days left in year--after March 21
Leap year?----
Weeks away---- weeks
MonthMarch3rd month
Previous----
Next occurrence----
About this date
About March 21
March 21 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 21 therefore carried New Year significance in ancient Rome, but in the modern Gregorian calendar the year begins on January 1.
For planning today, March 21 is a fixed annual date: it occurs on the same calendar date every year and is always 1 day after March 20 and 1 day before March 22. That makes the countdown predictable and useful for quarterly deadlines, spring launches, and academic calendars.
Why it matters
Why track how many days until March 21?
A fixed early-spring anchor used for personal, academic, and business planning.
World Poetry Day
UNESCO observance on March 21 celebrating poetry and linguistic diversity.
Observances are listed only when verified.
On this date
What’s special about March 21?
Important observances, events, traditions, and historical milestones associated with March 21.
Transparency
How the countdown works
1. Next occurrence
We create March 21 at 00:00 in your local timezone for this year. If that moment has already passed, we roll to March 21 next year.
2. Local time only
All calculations use your device clock and local timezone, so the countdown hits zero exactly when March 21 starts where you are.
3. Days → seconds
Remaining milliseconds are converted to days, hours, minutes, and seconds. Values never go negative and update every second.
4. Leap years
Leap years are handled automatically by the calendar — the interval from March 21 to next March 21 is 365 or 366 days as appropriate.
5. Already passed?
If today is after March 21, the timer counts toward next year’s March 21 and shows how many days ago the last one occurred.
6. Responsive & scoped
The timer is scoped to this component, accessible, and works on mobile without external libraries.
Explore
Related countdown dates
Nearby dates and same-day links around March 21.
FAQ
March 21 countdown FAQ
The countdown above shows the exact days, hours, minutes, and seconds until the next March 21 in your local timezone.
Divide the remaining days by seven. The Date Facts section also shows weeks remaining.
March 21 falls on a different weekday each year. See Date Facts for this occurrence’s weekday.
We take the next March 21 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 21 begins for you.
It automatically counts down to March 21 of the following year and shows how many days ago the last March 21 occurred.
March 21 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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