Week 12 of 2026

March 16, 2026 (Monday) to March 22, 2026 (Sunday)

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ISO Week Number
Week 12
2026 · Week 12 of 53 total weeks

What dates are in Week 12 of 2026?

Week 12 of 2026 runs from March 16, 2026 (Monday) to March 22, 2026 (Sunday). This is the 12th week of the year according to the ISO 8601 standard, in which weeks start on Monday.

Mon
Mar 16
Day 75
Tue
Mar 17
Day 76
Wed
Mar 18
Day 77
Thu
Mar 19
Day 78
Fri
Mar 20
Day 79
Sat
Mar 21
Day 80
Sun
Mar 22
Day 81
Starts March 16, 2026 Monday · Day 75
Ends March 22, 2026 Sunday · Day 81
Duration 7 days 2026 · 53-week year

📅 Nearby weeks in 2026

Week 10Week 11Week 12Week 13Week 14

📋 All 53 weeks in 2026

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

📆 Week 12 in other years

Week 12 · 2025Week 12 · 2027

🔧 Related tools

Week Number Calculator Date to Week 2026 Full Calendar

❓ Related questions about Week 12 of 2026

What day of the week is Mar 16?

Mar 16 is a Monday. It is the first day of Week 12 of 2026.

What day of the week is Mar 22?

Mar 22 is a Sunday. It is the last day of Week 12 of 2026.

What is the ISO week number for Mar 16?

Mar 16 is in Week 12 of 2026 according to ISO 8601.

What is the ISO week number for Mar 22?

Mar 22 is in Week 12 of 2026 according to ISO 8601.

❓ Frequently asked questions about Week 12 of 2026

What dates are in Week 12 of 2026?

Week 12 of 2026 runs from March 16, 2026 to March 22, 2026.

Which day of the year does Week 12 start on?

Week 12 of 2026 starts on March 16, 2026, the 75th day of 2026.

Does Week 12 of 2026 fall entirely within 2026?

Yes, all 7 days of Week 12 of 2026 fall within 2026.

How many weeks are in 2026?

2026 has 53 weeks according to ISO 8601.