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When is week 33?

Week 33 of 2027: Aug 16 – Aug 22

Mon, Aug 16 – Sun, Aug 22, 2027

Week 33 of 2026 ended on Sunday, August 16, 2026, so this is next year's. It starts in 320 days.

Week 33 of 2027 day by day

Week 33 of 2027 falls in August, in Q3. Its Monday is day 228 of 2027. In US-style numbering (weeks starting on Sunday, week 1 containing January 1, like WEEKNUM in Excel) that Monday is in week 34. No holidays or observances on our list fall in this week.

Days of ISO week 33, 2027
DayDateHolidays and observances
MondayAugust 16, 2027—
TuesdayAugust 17, 2027—
WednesdayAugust 18, 2027—
ThursdayAugust 19, 2027—
FridayAugust 20, 2027—
SaturdayAugust 21, 2027—
SundayAugust 22, 2027—

Week 33 by year

ISO week 33, 2024–2032
YearMondaySunday
2024Mon, Aug 12Sun, Aug 18
2025Mon, Aug 11Sun, Aug 17
2026Mon, Aug 10Sun, Aug 16
2027Mon, Aug 16Sun, Aug 22
2028Mon, Aug 14Sun, Aug 20
2029Mon, Aug 13Sun, Aug 19
2030Mon, Aug 12Sun, Aug 18
2031Mon, Aug 11Sun, Aug 17
2032Mon, Aug 9Sun, Aug 15

More week numbers

Frequently asked questions

When is week 33 of 2027?

From Monday, August 16, 2027 to Sunday, August 22, 2027.

How many days until week 33?

320 days, counting from today to Monday, the first day of the week.

Why can week 1 start in December?

ISO week 1 is the week containing the year's first Thursday, so it can begin as early as December 29 of the previous year.