Countdown

How many days until March 31?

155
days until March 31
The next March 31 is Wednesday, March 31, 2027

The short answer

March 31 is 155 days away — that's 22 weeks and 1 day, roughly 5.1 months, or 3,720 hours. The next March 31 falls on a Wednesday (Wednesday, March 31, 2027). The number above updates automatically at midnight in your time zone.

March 31, 2027 at a glance

Day of the weekWednesday
Day of the yearDay 90 of 365
Share of the year passed25%
Days left in 2027 after it275
QuarterQ1
Season (Northern Hemisphere)Spring

What's happening in March

March brings the spring equinox around the 20th, St. Patrick's Day on the 17th, and the start of daylight saving time in the US.

Other dates to know in March 2027: St. Patrick's Day (March 17), Spring (March 20), Easter (March 28).

The 155 days until March 31, broken down

111
business days
44
weekend days
22
full weeks
1
extra day

That's 111 working days (Monday to Friday) and 44 weekend days — 22 Saturdays and 22 Sundays. Public holidays vary by country, so they aren't deducted.

On March 31 in history

  • 1854Commodore Perry signs Convention of Kanagawa opening Japan
  • 1889Eiffel Tower officially completed and inaugurated in Paris
  • 1918Daylight saving time first goes into effect in the United States
  • 1931Earthquake devastates Managua, Nicaragua, killing thousands

Notable world events that happened on March 31 in earlier years.