Week 3 of 2026

January 12, 2026 (Monday) to January 18, 2026 (Sunday)

← Week 2 Week 3 of 2026 Week 4 →
ISO Week Number
Week 3
2026 · Week 3 of 53 total weeks

What dates are in Week 3 of 2026?

Week 3 of 2026 runs from January 12, 2026 (Monday) to January 18, 2026 (Sunday). This is the 3th week of the year according to the ISO 8601 standard, in which weeks start on Monday.

Mon
Jan 12
Day 12
Tue
Jan 13
Day 13
Wed
Jan 14
Day 14
Thu
Jan 15
Day 15
Fri
Jan 16
Day 16
Sat
Jan 17
Day 17
Sun
Jan 18
Day 18
Starts January 12, 2026 Monday · Day 12
Ends January 18, 2026 Sunday · Day 18
Duration 7 days 2026 · 53-week year

📅 Nearby weeks in 2026

Week 1Week 2Week 3Week 4Week 5

📋 All 53 weeks in 2026

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

📆 Week 3 in other years

Week 3 · 2025Week 3 · 2027

🔧 Related tools

Week Number Calculator Date to Week 2026 Full Calendar

❓ Related questions about Week 3 of 2026

What day of the week is Jan 12?

Jan 12 is a Monday. It is the first day of Week 3 of 2026.

What day of the week is Jan 18?

Jan 18 is a Sunday. It is the last day of Week 3 of 2026.

What is the ISO week number for Jan 12?

Jan 12 is in Week 3 of 2026 according to ISO 8601.

What is the ISO week number for Jan 18?

Jan 18 is in Week 3 of 2026 according to ISO 8601.

❓ Frequently asked questions about Week 3 of 2026

What dates are in Week 3 of 2026?

Week 3 of 2026 runs from January 12, 2026 to January 18, 2026.

Which day of the year does Week 3 start on?

Week 3 of 2026 starts on January 12, 2026, the 12th day of 2026.

Does Week 3 of 2026 fall entirely within 2026?

Yes, all 7 days of Week 3 of 2026 fall within 2026.

How many weeks are in 2026?

2026 has 53 weeks according to ISO 8601.