Week 1 of 2025

December 30, 2024 (Monday) to January 5, 2025 (Sunday)

← Week 1 of 2025 Week 2 →
ISO Week Number
Week 1
2025 · Week 1 of 52 total weeks

What dates are in Week 1 of 2025?

Week 1 of 2025 runs from December 30, 2024 (Monday) to January 5, 2025 (Sunday). This is the 1th week of the year according to the ISO 8601 standard, in which weeks start on Monday.

Mon
Dec 30
Day 365
Tue
Dec 31
Day 366
Wed
Jan 1
Day 1
Thu
Jan 2
Day 2
Fri
Jan 3
Day 3
Sat
Jan 4
Day 4
Sun
Jan 5
Day 5
Starts December 30, 2024 Monday · Day 365
Ends January 5, 2025 Sunday · Day 5
Duration 7 days 2025 · 52-week year

📅 Nearby weeks in 2025

Week 1Week 2Week 3

📋 All 52 weeks in 2025

12345·678910·1112131415·1617181920·2122232425·2627282930·3132333435·3637383940·4142434445·4647484950·5152

📆 Week 1 in other years

Week 1 · 2024Week 1 · 2026

🔧 Related tools

Week Number Calculator Date to Week 2025 Full Calendar

❓ Related questions about Week 1 of 2025

What day of the week is Dec 30?

Dec 30 is a Monday. It is the first day of Week 1 of 2025.

What day of the week is Jan 5?

Jan 5 is a Sunday. It is the last day of Week 1 of 2025.

What is the ISO week number for Dec 30?

Dec 30 is in Week 1 of 2025 according to ISO 8601.

What is the ISO week number for Jan 5?

Jan 5 is in Week 1 of 2025 according to ISO 8601.

❓ Frequently asked questions about Week 1 of 2025

What dates are in Week 1 of 2025?

Week 1 of 2025 runs from December 30, 2024 to January 5, 2025.

Which day of the year does Week 1 start on?

Week 1 of 2025 starts on December 30, 2024, the 365th day of 2024.

Does Week 1 of 2025 fall entirely within 2025?

Yes, all 7 days of Week 1 of 2025 fall within 2025.

How many weeks are in 2025?

2025 has 52 weeks according to ISO 8601.