What Day of the Week Is May 31?
May 31, 2027 falls on a Monday. This year, May 31, 2026 was a Sunday.
It is day 151 of 2027, and 214 days of the year come after it. The date sits in ISO week 22 and in the second quarter, April to June. North of the equator it is day 73 of spring, and summer starts on June 21. In Australia and the rest of the south, it is fall. The Moon is a waning crescent that day, and the next full moon is on Friday, June 18, 2027. It is a US federal holiday, Memorial Day.
May 31 from 2025 to 2028
The same date in four years, side by side. Moon phases use US Eastern dates.
| Fact | 2025 | 2026 | 2027 | 2028 |
|---|---|---|---|---|
| Day of the week | Saturday | Sunday | Monday | Wednesday |
| Day of the year | 151 of 365 | 151 of 365 | 151 of 365 | 152 of 366 |
| Days left in the year | 214 | 214 | 214 | 214 |
| ISO week | 22 | 22 | 22 | 22 |
| Quarter | Q2 | Q2 | Q2 | Q2 |
| Season (north) | Day 73 of spring | Day 73 of spring | Day 73 of spring | Day 74 of spring |
| Moon (US Eastern) | Waxing crescent | Full moon | Waning crescent | First quarter |
| US federal holiday | No | No | Memorial Day | No |
| Other holidays | – | Trinity Sunday | Spring Bank Holiday, Reconciliation Day | Shavuot |
Holidays on May 31
None of the 245 holidays and observances on this site is fixed to May 31.
Holidays that move with the calendar land on May 31 in some years from 2026 to 2035.
| Holiday or observance | Years on May 31 |
|---|---|
| Memorial Day | 2027, 2032 |
| Spring Bank Holiday | 2027, 2032 |
| Shavuot | 2028 |
| Reconciliation Day | 2027, 2032 |
| Trinity Sunday | 2026 |
| Corpus Christi | 2029 |
Born on May 31
In most horoscope tables, May 31 falls under Gemini, the sign that runs from May 21 to June 20.
The birthstone for May is the emerald on the American Gem Society list.
May 31 every year from 1950 to 2049
Find the decade on the left, then the last digit of the year across the top. A baby born on May 31, 1990 arrived on a Thursday, and one born on May 31, 2000 on a Wednesday. Weekends are shaded.
| Years | …0 | …1 | …2 | …3 | …4 | …5 | …6 | …7 | …8 | …9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1950s | Wed | Thu | Sat | Sun | Mon | Tue | Thu | Fri | Sat | Sun |
| 1960s | Tue | Wed | Thu | Fri | Sun | Mon | Tue | Wed | Fri | Sat |
| 1970s | Sun | Mon | Wed | Thu | Fri | Sat | Mon | Tue | Wed | Thu |
| 1980s | Sat | Sun | Mon | Tue | Thu | Fri | Sat | Sun | Tue | Wed |
| 1990s | Thu | Fri | Sun | Mon | Tue | Wed | Fri | Sat | Sun | Mon |
| 2000s | Wed | Thu | Fri | Sat | Mon | Tue | Wed | Thu | Sat | Sun |
| 2010s | Mon | Tue | Thu | Fri | Sat | Sun | Tue | Wed | Thu | Fri |
| 2020s | Sun | Mon | Tue | Wed | Fri | Sat | Sun | Mon | Wed | Thu |
| 2030s | Fri | Sat | Mon | Tue | Wed | Thu | Sat | Sun | Mon | Tue |
| 2040s | Thu | Fri | Sat | Sun | Tue | Wed | Thu | Fri | Sun | Mon |
When May 31 is on the same weekday again
After 2027, May 31 is next a Monday in 2032. The next weekend May 31 is in 2031, on a Saturday.
| Day of the week | Next year after 2027 |
|---|---|
| Monday | 2032 |
| Tuesday | 2033 |
| Wednesday | 2028 |
| Thursday | 2029 |
| Friday | 2030 |
| Saturday | 2031 |
| Sunday | 2037 |
May 31 by year
| Year | Day of the week | Weekend or weekday |
|---|---|---|
| 2023 | Wednesday | Weekday |
| 2024 | Friday | Weekday |
| 2025 | Saturday | Weekend |
| 2026 | Sunday | Weekend |
| 2027 | Monday | Weekday |
| 2028 | Wednesday | Weekday |
| 2029 | Thursday | Weekday |
| 2030 | Friday | Weekday |
| 2031 | Saturday | Weekend |
| 2032 | Monday | Weekday |
| 2033 | Tuesday | Weekday |
| 2034 | Wednesday | Weekday |
Why the weekday changes
A common year is 365 days, one day more than 52 weeks. So May 31 moves on one weekday each year: Sunday in 2026, Monday in 2027. The jump is two days when February 29 comes in between, so May 31, 2028 is a Wednesday, two on from 2027's Monday. Between 1901 and 2099, the whole pattern repeats every 28 years.
More about May 31 on this site
May 31 questions
What day of the week is May 31, 2027?
May 31, 2027 is a Monday. It is day 151 of the year and falls in ISO week 22.
Is May 31 a holiday?
None of the holidays on this site is fixed to May 31. In 2027 it is a US federal holiday, Memorial Day. Some years it is Memorial Day instead, as in 2027.
Cite this page
APA: ClockTotals. (2026, November 6). What Day of the Week Is May 31? https://clocktotals.com/what-day-is/may-31/
MLA: “What Day of the Week Is May 31?” ClockTotals, 6 Nov. 2026, clocktotals.com/what-day-is/may-31/.
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