ISO week 2026-W45

Week 45, 2026

Monday, November 2 – Sunday, November 8, 2026

ISO week 45 of 2026 (2026-W45) runs from Monday, November 2, 2026 to Sunday, November 8, 2026.

This week starts 3 weeks from now. The current week is week 42, 2026.

The 7 days of week 45

Dates in week 45, 2026
Day	Date	Day of year	US week	ISO date
Monday	November 2, 2026	306 of 365	45	2026-W45-1
Tuesday	November 3, 2026	307 of 365	45	2026-W45-2
Wednesday	November 4, 2026	308 of 365	45	2026-W45-3
Thursday	November 5, 2026	309 of 365	45	2026-W45-4
Friday	November 6, 2026	310 of 365	45	2026-W45-5
Saturday	November 7, 2026	311 of 365	45	2026-W45-6
Sunday	November 8, 2026	312 of 365	46	2026-W45-7

Week 45 at a glance

ISO code: 2026-W45 (Monday is 2026-W45-1, Sunday is 2026-W45-7)
Month: November
Quarter: Q4 of 2026
Day of year: Days 306–312 of 365
US week number: Monday–Saturday: US week 45; Sunday: US week 46 (Sunday-start weeks, week 1 contains January 1)
Even or odd: Week 45 is an odd week
Weeks left: After this week, 8 ISO weeks remain in 2026 (53 weeks in total)
Year progress: By Sunday, 85% of 2026 has passed

Holidays and key dates

There are no US federal holidays, daylight saving time changes or quarter starts in week 45 of 2026.

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 45, 2026

What are the dates of week 45 in 2026?

Week 45 of 2026 starts on Monday, November 2, 2026 and ends on Sunday, November 8, 2026.

What month is week 45 of 2026?

Week 45 falls in November. By the Thursday rule that ISO 8601 uses for years and quarters, it counts as a November week.

How do I get week 45 of 2026 in Excel or Google Sheets?

=ISOWEEKNUM(DATE(2026,11,2)) returns 45. To go the other way, =DATE(2026,1,4)-WEEKDAY(DATE(2026,1,4),2)+1+(45-1)*7 returns the Monday, November 2, 2026.