ISO week 2027-W36

Week 36, 2027

Monday, September 6 – Sunday, September 12, 2027

ISO week 36 of 2027 (2027-W36) runs from Monday, September 6, 2027 to Sunday, September 12, 2027.

This week starts 47 weeks from now. The current week is week 42, 2026.

The 7 days of week 36

Dates in week 36, 2027
Day	Date	Day of year	US week	ISO date
Monday	September 6, 2027	249 of 365	37	2027-W36-1
Tuesday	September 7, 2027	250 of 365	37	2027-W36-2
Wednesday	September 8, 2027	251 of 365	37	2027-W36-3
Thursday	September 9, 2027	252 of 365	37	2027-W36-4
Friday	September 10, 2027	253 of 365	37	2027-W36-5
Saturday	September 11, 2027	254 of 365	37	2027-W36-6
Sunday	September 12, 2027	255 of 365	38	2027-W36-7

Week 36 at a glance

ISO code: 2027-W36 (Monday is 2027-W36-1, Sunday is 2027-W36-7)
Month: September
Quarter: Q3 of 2027
Day of year: Days 249–255 of 365
US week number: Monday–Saturday: US week 37; Sunday: US week 38 (Sunday-start weeks, week 1 contains January 1)
Even or odd: Week 36 is an even week
Weeks left: After this week, 16 ISO weeks remain in 2027 (52 weeks in total)
Year progress: By Sunday, 70% of 2027 has passed

Holidays and key dates

Monday, September 6: Labor Day – US federal holiday

Week numbers follow ISO 8601: weeks start on Monday and week 1 contains the first Thursday of the year. US weeks start on Sunday, with week 1 containing January 1.

Questions about week 36, 2027

What are the dates of week 36 in 2027?

Week 36 of 2027 starts on Monday, September 6, 2027 and ends on Sunday, September 12, 2027.

What month is week 36 of 2027?

Week 36 falls in September. By the Thursday rule that ISO 8601 uses for years and quarters, it counts as a September week.

How do I get week 36 of 2027 in Excel or Google Sheets?

=ISOWEEKNUM(DATE(2027,9,6)) returns 36. To go the other way, =DATE(2027,1,4)-WEEKDAY(DATE(2027,1,4),2)+1+(36-1)*7 returns the Monday, September 6, 2027.