Week 43 of 2025

October 20, 2025 (Monday) to October 26, 2025 (Sunday)

← Week 42 Week 43 of 2025 Week 44 →
ISO Week Number
Week 43
2025 · Week 43 of 52 total weeks

What dates are in Week 43 of 2025?

Week 43 of 2025 runs from October 20, 2025 (Monday) to October 26, 2025 (Sunday). This is the 43th week of the year according to the ISO 8601 standard, in which weeks start on Monday.

Mon
Oct 20
Day 293
Tue
Oct 21
Day 294
Wed
Oct 22
Day 295
Thu
Oct 23
Day 296
Fri
Oct 24
Day 297
Sat
Oct 25
Day 298
Sun
Oct 26
Day 299
Starts October 20, 2025 Monday · Day 293
Ends October 26, 2025 Sunday · Day 299
Duration 7 days 2025 · 52-week year

📅 Nearby weeks in 2025

Week 41Week 42Week 43Week 44Week 45

📋 All 52 weeks in 2025

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

📆 Week 43 in other years

Week 43 · 2024Week 43 · 2026

🔧 Related tools

Week Number Calculator Date to Week 2025 Full Calendar

❓ Related questions about Week 43 of 2025

What day of the week is Oct 20?

Oct 20 is a Monday. It is the first day of Week 43 of 2025.

What day of the week is Oct 26?

Oct 26 is a Sunday. It is the last day of Week 43 of 2025.

What is the ISO week number for Oct 20?

Oct 20 is in Week 43 of 2025 according to ISO 8601.

What is the ISO week number for Oct 26?

Oct 26 is in Week 43 of 2025 according to ISO 8601.

❓ Frequently asked questions about Week 43 of 2025

What dates are in Week 43 of 2025?

Week 43 of 2025 runs from October 20, 2025 to October 26, 2025.

Which day of the year does Week 43 start on?

Week 43 of 2025 starts on October 20, 2025, the 293th day of 2025.

Does Week 43 of 2025 fall entirely within 2025?

Yes, all 7 days of Week 43 of 2025 fall within 2025.

How many weeks are in 2025?

2025 has 52 weeks according to ISO 8601.