Week 53 of 2026

December 28, 2026 (Monday) to January 3, 2027 (Sunday)

← Week 52 Week 53 of 2026 →
ISO Week Number
Week 53
2026 · Week 53 of 53 total weeks

What dates are in Week 53 of 2026?

Week 53 of 2026 runs from December 28, 2026 (Monday) to January 3, 2027 (Sunday). This is the 53th week of the year according to the ISO 8601 standard, in which weeks start on Monday.

Mon
Dec 28
Day 362
Tue
Dec 29
Day 363
Wed
Dec 30
Day 364
Thu
Dec 31
Day 365
Fri
Jan 1
Day 1
Sat
Jan 2
Day 2
Sun
Jan 3
Day 3
Starts December 28, 2026 Monday · Day 362
Ends January 3, 2027 Sunday · Day 3
Duration 7 days 2026 · 53-week year

📅 Nearby weeks in 2026

Week 51Week 52Week 53

📋 All 53 weeks in 2026

12345·678910·1112131415·1617181920·2122232425·2627282930·3132333435·3637383940·4142434445·4647484950·515253

📆 Week 53 in other years

Week 52 · 2025Week 52 · 2027

🔧 Related tools

Week Number Calculator Date to Week 2026 Full Calendar

❓ Related questions about Week 53 of 2026

What day of the week is Dec 28?

Dec 28 is a Monday. It is the first day of Week 53 of 2026.

What day of the week is Jan 3?

Jan 3 is a Sunday. It is the last day of Week 53 of 2026.

What is the ISO week number for Dec 28?

Dec 28 is in Week 53 of 2026 according to ISO 8601.

What is the ISO week number for Jan 3?

Jan 3 is in Week 53 of 2026 according to ISO 8601.

❓ Frequently asked questions about Week 53 of 2026

What dates are in Week 53 of 2026?

Week 53 of 2026 runs from December 28, 2026 to January 3, 2027.

Which day of the year does Week 53 start on?

Week 53 of 2026 starts on December 28, 2026, the 362th day of 2026.

Does Week 53 of 2026 fall entirely within 2026?

Yes, all 7 days of Week 53 of 2026 fall within 2026.

How many weeks are in 2026?

2026 has 53 weeks according to ISO 8601.