May 31, 2027 falls on a Monday
May 31, 2027 is a Monday. It is 205 days from today, November 7, 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 |
What day was May 31 in a past year?
The table above looks forward. Going back, May 31 fell on a different weekday in each earlier year, and each of those has its own page.
How far away is May 31?
The next May 31 is Monday, May 31, 2027, 205 days from today. That is 29 whole weeks and 2 days, or 29.3 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