ISO Week Number for Monday, October 13, 2025
ISO 8601 calendar week analysis & DevOven graphic week breakdown for 2025-10-13.
Result & Live Analytics
Calculated Result
ISO Week 42
✨ Quarter Q4 • Day 286 of Year (2025-10-13 to 2025-10-19)
Year Progress81%
Week 42
ISO Week Number
Q4
Quarter
Day 286
Day of Year
10 Weeks
Weeks Remaining
Breakdown & Analysis
The date Monday, October 13, 2025 (2025-10-13) is officially ISO Week Number 42 of ISO Year 2025. This week begins on Monday, 2025-10-13 and concludes on Sunday, 2025-10-19.
ISO Year 2025 contains 52 total weeks. Week 42 falls in Quarter Q4 and represents Day 286 of the year (81% annual completion), leaving 10 weeks remaining.
Frequently Asked Questions
What ISO week number is 2025-10-13?
2025-10-13 falls in ISO Week Number 42 of ISO Year 2025.
What are the start and end dates for Week 42 (2025)?
ISO Week 42 begins on Monday, 2025-10-13 and ends on Sunday, 2025-10-19.
What is the day of year and quarter for 2025-10-13?
2025-10-13 is Day 286 of the year and falls in Quarter Q4.
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