Week 22 of 2026 runs May 25 to May 31
ISO week 22 of 2026 begins on Monday, May 25, 2026 and ends on Sunday, May 31, 2026. It has already passed; the current week is 39. The week covers May only.
What dates are in week 22?
| Weekday | Date | Day of year | Notes |
|---|---|---|---|
| Monday | May 25, 2026 | 145 | Memorial Day |
| Tuesday | May 26, 2026 | 146 | |
| Wednesday | May 27, 2026 | 147 | |
| Thursday | May 28, 2026 | 148 | |
| Friday | May 29, 2026 | 149 | |
| Saturday | May 30, 2026 | 150 | |
| Sunday | May 31, 2026 | 151 |
Week 22 of 2026 contains Memorial Day on May 25. The seven dates always run Monday through Sunday, which is the part of ISO 8601 that most often catches people out: a week that starts on Sunday is a different convention and gives a different number.
How ISO week 22 is worked out
ISO 8601 fixes week one as the week containing the first Thursday of January, which is the same as saying the week containing 4 January, or the week holding the majority of its days in the new year. Counting forward from there, week 22 is the 22nd Monday-to-Sunday block of 2026, which lands on May 25. All seven dates sit inside 2026, so the ISO year and the calendar year agree for this week.
When is week 22 in other years?
| Year | Monday | Sunday | Weeks in year |
|---|---|---|---|
| 2026 | May 25 | May 31 | 53 |
| 2027 | May 31 | June 6 | 52 |
| 2028 | May 29 | June 4 | 52 |
| 2029 | May 28 | June 3 | 52 |
| 2030 | May 27 | June 2 | 52 |
Week 22 shifts by a day or two each year because a year is 52 weeks plus one or two days, so the Monday that opens it moves from May 25 in 2026 to May 31 in 2027.
How far away is week 22?
Today is Wednesday, September 23, 2026, which sits in ISO week 39 of 2026. Week 22 of 2026 closed 115 days ago. The same week number in the following year is listed in the table above.
Questions
- What dates are in week 22 of 2026?
- Monday May 25, 2026 through Sunday May 31, 2026.
- What week is it now?
- ISO week 39 of 2026. Today is Wednesday, September 23, 2026.
- How many weeks does 2026 have?
- 53. The 2026 week count page explains the rule.
- Do ISO weeks start on Monday or Sunday?
- Monday. A Sunday-first week is a different convention and can give a different week number for the same date.
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