Week 1 of 2031

December 30, 2030 (Monday) to January 5, 2031 (Sunday)

← Week 1 of 2031 Week 2 →
ISO Week Number
Week 1
2031 · Week 1 of 52 total weeks

What dates are in Week 1 of 2031?

Week 1 of 2031 runs from December 30, 2030 (Monday) to January 5, 2031 (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 364
Tue
Dec 31
Day 365
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, 2030 Monday · Day 364
Ends January 5, 2031 Sunday · Day 5
Duration 7 days 2031 · 52-week year

📅 Nearby weeks in 2031

Week 1Week 2Week 3

📋 All 52 weeks in 2031

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

📆 Week 1 in other years

Week 1 · 2030Week 1 · 2032

🔧 Related tools

Week Number Calculator Date to Week 2031 Full Calendar

❓ Related questions about Week 1 of 2031

What day of the week is Dec 30?

Dec 30 is a Monday. It is the first day of Week 1 of 2031.

What day of the week is Jan 5?

Jan 5 is a Sunday. It is the last day of Week 1 of 2031.

What is the ISO week number for Dec 30?

Dec 30 is in Week 1 of 2031 according to ISO 8601.

What is the ISO week number for Jan 5?

Jan 5 is in Week 1 of 2031 according to ISO 8601.

❓ Frequently asked questions about Week 1 of 2031

What dates are in Week 1 of 2031?

Week 1 of 2031 runs from December 30, 2030 to January 5, 2031.

Which day of the year does Week 1 start on?

Week 1 of 2031 starts on December 30, 2030, the 364th day of 2030.

Does Week 1 of 2031 fall entirely within 2031?

Yes, all 7 days of Week 1 of 2031 fall within 2031.

How many weeks are in 2031?

2031 has 52 weeks according to ISO 8601.