How Many Days Until May 31? Countdown
There are 273 days until May 31 on Monday, May 31, 2027. May 31 is World No Tobacco Day (WHO, since 1987) and, in 2027, Memorial Day itself — the last Monday in May falls on May 31 that year. In 2026 Memorial Day was May 25, so May 31 was just the last day of the month. The timer always counts the 31st, while the copy flags when it coincides with Memorial Day.
2026–2028 dates
| Year | Date |
|---|---|
| 2026 | Sunday, May 31 |
| 2027 | Monday, May 31 |
| 2028 | Wednesday, May 31 |
Add May 31 to your calendar
Countdown to May 31
| Year | May 31 weekday | Memorial Day |
|---|---|---|
| 2026 | Sunday | Mon May 25 |
| 2027 | Monday | Same day |
| 2028 | Wednesday | Mon May 29 |
Memorial Day began as Decoration Day after the Civil War and was moved to the last Monday in May by the Uniform Monday Holiday Act (first observed 1971). It honors US military personnel who died in service. That is a different legal object from May 31 as a calendar date.
How many days until May 31
If you need the federal day off in 2027, this page’s date and Memorial Day are the same Monday. In other years they split.
Pick your timezone. Midnight May 31 is the zero, even when it is also Memorial Day.
Why this countdown exists
This countdown exists because “How Many Days Until May 31” is a real remaining-days search. May 31 is the civil date people mean. They count to it for the named observance and for travel, school, and plans that share the same morning. The timer uses midnight in the timezone you pick.
People also ask
Is May 31 always Memorial Day?
No. Only when the last Monday in May is the 31st, as in 2027.
What is World No Tobacco Day?
A WHO awareness date every May 31.
Does May 31 2027 fall on Memorial Day?
Yes. In 2027 the last Monday in May is May 31.