Week 13 of 2026

March 23, 2026 (Monday) to March 29, 2026 (Sunday)

← Week 12 Week 13 of 2026 Week 14 →
ISO Week Number
Week 13
2026 · Week 13 of 53 total weeks

What dates are in Week 13 of 2026?

Week 13 of 2026 runs from March 23, 2026 (Monday) to March 29, 2026 (Sunday). This is the 13th week of the year according to the ISO 8601 standard, in which weeks start on Monday.

Mon
Mar 23
Day 82
Tue
Mar 24
Day 83
Wed
Mar 25
Day 84
Thu
Mar 26
Day 85
Fri
Mar 27
Day 86
Sat
Mar 28
Day 87
Sun
Mar 29
Day 88
Starts March 23, 2026 Monday · Day 82
Ends March 29, 2026 Sunday · Day 88
Duration 7 days 2026 · 53-week year

📅 Nearby weeks in 2026

Week 11Week 12Week 13Week 14Week 15

📋 All 53 weeks in 2026

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

📆 Week 13 in other years

Week 13 · 2025Week 13 · 2027

🔧 Related tools

Week Number Calculator Date to Week 2026 Full Calendar

❓ Related questions about Week 13 of 2026

What day of the week is Mar 23?

Mar 23 is a Monday. It is the first day of Week 13 of 2026.

What day of the week is Mar 29?

Mar 29 is a Sunday. It is the last day of Week 13 of 2026.

What is the ISO week number for Mar 23?

Mar 23 is in Week 13 of 2026 according to ISO 8601.

What is the ISO week number for Mar 29?

Mar 29 is in Week 13 of 2026 according to ISO 8601.

❓ Frequently asked questions about Week 13 of 2026

What dates are in Week 13 of 2026?

Week 13 of 2026 runs from March 23, 2026 to March 29, 2026.

Which day of the year does Week 13 start on?

Week 13 of 2026 starts on March 23, 2026, the 82th day of 2026.

Does Week 13 of 2026 fall entirely within 2026?

Yes, all 7 days of Week 13 of 2026 fall within 2026.

How many weeks are in 2026?

2026 has 53 weeks according to ISO 8601.