May 2027 Calendar
Updated November 6, 2026 · Edited by the JanuaryCalendar.com team
May 2027 starts on Saturday, May 1, and ends on Monday, May 31. It has 31 days, 21 weekdays and 20 US working days. US federal holidays: Memorial Day (Mon, May 31).
- Starts
- Saturday
- Days
- 31
- US working days
- 20
- Full moon
- May 20
- Birthstone
- Emerald
- Zodiac
- Taurus, Gemini
May 2027
| Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday |
|---|---|---|---|---|---|---|
| 1 | ||||||
| 2 | 3 | 4 | 5Cinco de Mayo | 6New Moon | 7 | 8 |
| 9Mother's Day | 10 | 11 | 12 | 13First Quarter | 14 | 15 |
| 16 | 17 | 18 | 19 | 20Full Moon | 21 | 22 |
| 23 | 24 | 25 | 26 | 27 | 28Last Quarter | 29 |
| 30 | 31Memorial Day |
- May 3Early May bank holiday (UK)
- May 5Cinco de Mayo
- May 6● New Moon, 6:59 a.m. EDT
- May 9Mother's Day (US)
- May 13◐ First Quarter, 12:44 a.m. EDT
- May 20○ Full Moon, 6:59 a.m. EDT
- May 28◑ Last Quarter, 9:58 a.m. EDT
- May 31Memorial Day
- May 31Spring bank holiday (UK)
May 2027 holidays and observances
| Date | Day | Holiday or observance | Notes |
|---|---|---|---|
| May 3 | Mon | Early May bank holiday (UK) | UK |
| May 5 | Wed | Cinco de Mayo | Observance |
| May 9 | Sun | Mother's Day (US) | Observance |
| May 31 | Mon | Memorial Day | Federal holiday |
| May 31 | Mon | Spring bank holiday (UK) | UK |
Dates follow federal rules (a holiday on Saturday is observed Friday, on Sunday the following Monday). UK bank holidays follow standard rules; one-off extra holidays are announced by the government.
Moon phases
| Phase | Date (Eastern) | Time (ET) | Time (UTC) |
|---|---|---|---|
| ● New Moon | Thursday, May 6 | 6:59 a.m. EDT | May 06, 10:59 UTC |
| ◐ First Quarter | Thursday, May 13 | 12:44 a.m. EDT | May 13, 04:44 UTC |
| ○ Full Moon | Thursday, May 20 | 6:59 a.m. EDT | May 20, 10:59 UTC |
| ◑ Last Quarter | Friday, May 28 | 9:58 a.m. EDT | May 28, 13:58 UTC |
Calculated with standard astronomical algorithms; Eastern Time.
Working days
May 2027 has 20 working days in the US: 21 weekdays minus 1 federal holiday on a weekday. Monday, Saturday and Sunday occur five times.
| Weekday | Count |
|---|---|
| Sunday | 5 |
| Monday | 5 |
| Tuesday | 4 |
| Wednesday | 4 |
| Thursday | 4 |
| Friday | 4 |
| Saturday | 5 |
Week numbers
| ISO week | Dates |
|---|---|
| Week 17 | May 1 – 2 |
| Week 18 | May 3 – 9 |
| Week 19 | May 10 – 16 |
| Week 20 | May 17 – 23 |
| Week 21 | May 24 – 30 |
| Week 22 | May 31 |
Printable May 2027 calendar
Free for personal, classroom and office use. See all printable calendars.
Frequently asked questions
How many days are in May 2027?
May 2027 has 31 days. It starts on a Saturday and ends on a Monday.
How many working days are in May 2027?
May 2027 has 20 US working days (21 weekdays minus federal holidays).
What federal holidays are in May 2027?
Memorial Day (Mon, May 31).
When is the full moon in May 2027?
The full moon is on Thursday, May 20, 2027 at 6:59 a.m. EDT.
What is the May birthstone and zodiac sign?
The May birthstone is emerald. People born May 1–20 are Taurus; those born May 21–31 are Gemini.