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When is week 53?

Week 53 of 2026: Dec 28 – Jan 3

Mon, Dec 28, 2026 – Sun, Jan 3, 2027

It starts in 89 days.

Week 53 of 2026 day by day

Week 53 of 2026 falls in December and January, in Q4. Its Monday is day 362 of 2026. In US-style numbering (weeks starting on Sunday, week 1 containing January 1, like WEEKNUM in Excel) that Monday is in week 53.

Days of ISO week 53, 2026
DayDateHolidays and observances
MondayDecember 28, 2026—
TuesdayDecember 29, 2026—
WednesdayDecember 30, 2026—
ThursdayDecember 31, 2026New Year's Eve
FridayJanuary 1, 2027New Year's Day
SaturdayJanuary 2, 2027—
SundayJanuary 3, 2027—

Week 53 by year

ISO week 53, 2024–2032
YearMondaySunday
2026Mon, Dec 28Sun, Jan 3, 2027
2032Mon, Dec 27Sun, Jan 2, 2033

Only years that start on a Thursday (or a Wednesday in leap years) have a week 53.

More week numbers

Frequently asked questions

When is week 53 of 2026?

From Monday, December 28, 2026 to Sunday, January 3, 2027.

How many days until week 53?

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

Which years have a week 53?

In the next 30 years: 2026, 2032, 2037, 2043, 2048, 2054.