Week 42 of 2025

October 13, 2025 (Monday) to October 19, 2025 (Sunday)

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ISO Week Number
Week 42
2025 · Week 42 of 52 total weeks

What dates are in Week 42 of 2025?

Week 42 of 2025 runs from October 13, 2025 (Monday) to October 19, 2025 (Sunday). This is the 42th week of the year according to the ISO 8601 standard, in which weeks start on Monday.

Mon
Oct 13
Day 286
Tue
Oct 14
Day 287
Wed
Oct 15
Day 288
Thu
Oct 16
Day 289
Fri
Oct 17
Day 290
Sat
Oct 18
Day 291
Sun
Oct 19
Day 292
Starts October 13, 2025 Monday · Day 286
Ends October 19, 2025 Sunday · Day 292
Duration 7 days 2025 · 52-week year

📅 Nearby weeks in 2025

Week 40Week 41Week 42Week 43Week 44

📋 All 52 weeks in 2025

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

📆 Week 42 in other years

Week 42 · 2024Week 42 · 2026

🔧 Related tools

Week Number Calculator Date to Week 2025 Full Calendar

❓ Related questions about Week 42 of 2025

What day of the week is Oct 13?

Oct 13 is a Monday. It is the first day of Week 42 of 2025.

What day of the week is Oct 19?

Oct 19 is a Sunday. It is the last day of Week 42 of 2025.

What is the ISO week number for Oct 13?

Oct 13 is in Week 42 of 2025 according to ISO 8601.

What is the ISO week number for Oct 19?

Oct 19 is in Week 42 of 2025 according to ISO 8601.

❓ Frequently asked questions about Week 42 of 2025

What dates are in Week 42 of 2025?

Week 42 of 2025 runs from October 13, 2025 to October 19, 2025.

Which day of the year does Week 42 start on?

Week 42 of 2025 starts on October 13, 2025, the 286th day of 2025.

Does Week 42 of 2025 fall entirely within 2025?

Yes, all 7 days of Week 42 of 2025 fall within 2025.

How many weeks are in 2025?

2025 has 52 weeks according to ISO 8601.