Week 13 of 2027: Dates
Week 13 of 2027 starts on Monday, March 29, 2027 and ends on Sunday, April 4, 2027. It falls in March and April, in the first quarter of 2027.
The days of week 13, 2027
| Day | Date | Day of year | US federal holiday |
|---|---|---|---|
| Monday | March 29, 2027 | Day 88 | |
| Tuesday | March 30, 2027 | Day 89 | |
| Wednesday | March 31, 2027 | Day 90 | |
| Thursday | April 1, 2027 | Day 91 | |
| Friday | April 2, 2027 | Day 92 | |
| Saturday | April 3, 2027 | Day 93 | |
| Sunday | April 4, 2027 | Day 94 |
Other days in this week: April Fools' Day, Easter Monday, World Autism Awareness Day.
ISO and US week numbers
Week 13 covers days 88 to 94 of 2027. US calendars start the week a day earlier, on Sunday, March 28. On that count the same Monday is in week 14 of 2027, one off from the ISO number. To check it in Excel or Google Sheets, =ISOWEEKNUM(DATE(2027,3,29)) returns 13 and =WEEKNUM(DATE(2027,3,29)) returns 14.
Week 13 by year
| Year | Monday | Sunday |
|---|---|---|
| 2027 | March 29, 2027 | April 4, 2027 |
| 2028 | March 27, 2028 | April 2, 2028 |
| 2029 | March 26, 2029 | April 1, 2029 |
| 2030 | March 25, 2030 | March 31, 2030 |
| 2031 | March 24, 2031 | March 30, 2031 |
| 2032 | March 22, 2032 | March 28, 2032 |
This page shows the next week 13 that has not ended yet. ISO weeks start on Monday, and week 1 contains the year's first Thursday.
Week 13 questions
When does week 13 of 2027 start?
On Monday, March 29, 2027. It ends on Sunday, April 4, 2027, seven days later.
Does every year have a week 13?
Yes. Every ISO year has weeks 1 to 52, and only some have a week 53.
Related pages
Cite this page
APA: ClockTotals. (2026, October 28). Week 13 of 2027: Dates. https://clocktotals.com/week-number/13/
MLA: “Week 13 of 2027: Dates.” ClockTotals, 28 Oct. 2026, clocktotals.com/week-number/13/.
Link (HTML): <a href="https://clocktotals.com/week-number/13/">Week 13 of 2027: Dates</a>