May 31, 2027 falls on a Monday
May 31, 2027 is a Monday. It is 250 days from today, September 23, 2026. The date is day 151 of 365 in 2027, it sits in ISO week 22, and it is the 31st of a 31-day month with 0 days after it. May 31 is also Memorial Day, a federal holiday.
What day of the week is May 31?
In 2027 it is a Monday. The weekday is not a property of the date itself, it is a property of the date in a given year, so the honest answer always names the year. A common year is 365 days, which is 52 weeks plus one spare day, so a fixed date moves forward one weekday from one year to the next. A leap year inserts a second spare day, so the step is two whenever 29 February falls inside the gap. That is why May 31 works its way around the week rather than repeating on a tidy schedule.
May 31 in the next few years
| Year | Weekday | Day of year | ISO week | Leap year |
|---|---|---|---|---|
| 2026 | Sunday | 151 | 22 | no |
| 2027 | Monday | 151 | 22 | no |
| 2028 | Wednesday | 152 | 22 | yes |
| 2029 | Thursday | 151 | 22 | no |
| 2030 | Friday | 151 | 22 | no |
| 2031 | Saturday | 151 | 22 | no |
| 2032 | Monday | 152 | 23 | yes |
| 2033 | Tuesday | 151 | 22 | no |
Between 2026 and 2027 the weekday moves from Sunday to Monday, a step of 1. The day-of-year column also moves: May 31 is day 151 in a common year and day 152 in a leap year, because it sits after 29 February.
How often does May 31 fall at a weekend?
Counting the 28 occurrences from 2027 to 2054, May 31 lands on a Saturday 4 times and on a Sunday 4 times, so 8 of those 28 years put it at a weekend. Over a full 28-year stretch the Gregorian calendar repeats itself, and a fixed date visits each weekday four times, so the long-run answer is two weekend years in every seven.
Where May 31 sits in the calendar
May 31 is the 31st day of May, a month of 31 days in 2027, leaving 0 days of the month after it. Measured from 1 January it is 150 days into the year, and 214 days remain to 31 December, which puts it 41.4% of the way through 2027. In May 2027 the other Mondays are the 3rd, 10th, 17th, 24th, because weekdays repeat every seven days inside a month just as they do across one.
What else happens around May 31?
| Date | Occasion | Type | Days from May 31 |
|---|---|---|---|
| May 31 | Memorial Day | federal holiday | same day |
How far away is May 31?
The next May 31 is Monday, May 31, 2027, 250 days from today. That is 35 whole weeks and 5 days, or 35.7 weeks written as a decimal. To count towards it second by second, use the date calculator.
Questions
- What day of the week is May 31, 2027?
- A Monday. It is day 151 of 365 and falls in ISO week 22.
- What day of the week is May 31 next year?
- In 2027 it is a Monday.
- What number day of the year is May 31?
- Day 151 in a common year and day 152 in a leap year. See day 151 for more.
- Which week of the year is May 31 in?
- ISO week 22 in 2027. The week 22 page lists every date in it.
Nearby dates
The 31st of other months
All 366 dates · Week 22 · Day 151 of the year · Event countdowns · When is it? · Date calculator