Week 1 of 2027

January 4, 2027 (Monday) to January 10, 2027 (Sunday)

← Week 1 of 2027 Week 2 →
ISO Week Number
Week 1
2027 · Week 1 of 52 total weeks

What dates are in Week 1 of 2027?

Week 1 of 2027 runs from January 4, 2027 (Monday) to January 10, 2027 (Sunday). This is the 1th week of the year according to the ISO 8601 standard, in which weeks start on Monday.

Mon
Jan 4
Day 4
Tue
Jan 5
Day 5
Wed
Jan 6
Day 6
Thu
Jan 7
Day 7
Fri
Jan 8
Day 8
Sat
Jan 9
Day 9
Sun
Jan 10
Day 10
Starts January 4, 2027 Monday · Day 4
Ends January 10, 2027 Sunday · Day 10
Duration 7 days 2027 · 52-week year

📅 Nearby weeks in 2027

Week 1Week 2Week 3

📋 All 52 weeks in 2027

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

📆 Week 1 in other years

Week 1 · 2026Week 1 · 2028

🔧 Related tools

Week Number Calculator Date to Week 2027 Full Calendar

❓ Related questions about Week 1 of 2027

What day of the week is Jan 4?

Jan 4 is a Monday. It is the first day of Week 1 of 2027.

What day of the week is Jan 10?

Jan 10 is a Sunday. It is the last day of Week 1 of 2027.

What is the ISO week number for Jan 4?

Jan 4 is in Week 1 of 2027 according to ISO 8601.

What is the ISO week number for Jan 10?

Jan 10 is in Week 1 of 2027 according to ISO 8601.

❓ Frequently asked questions about Week 1 of 2027

What dates are in Week 1 of 2027?

Week 1 of 2027 runs from January 4, 2027 to January 10, 2027.

Which day of the year does Week 1 start on?

Week 1 of 2027 starts on January 4, 2027, the 4th day of 2027.

Does Week 1 of 2027 fall entirely within 2027?

Yes, all 7 days of Week 1 of 2027 fall within 2027.

How many weeks are in 2027?

2027 has 52 weeks according to ISO 8601.