ISO Week Number for Monday, October 12, 2026
ISO 8601 calendar week analysis & DevOven graphic week breakdown for 2026-10-12.
Result & Live Analytics
Calculated Result
ISO Week 42
✨ Quarter Q4 • Day 285 of Year (2026-10-12 to 2026-10-18)
Year Progress79%
Week 42
ISO Week Number
Q4
Quarter
Day 285
Day of Year
11 Weeks
Weeks Remaining
Breakdown & Analysis
The date Monday, October 12, 2026 (2026-10-12) is officially ISO Week Number 42 of ISO Year 2026. This week begins on Monday, 2026-10-12 and concludes on Sunday, 2026-10-18.
ISO Year 2026 contains 53 total weeks. Week 42 falls in Quarter Q4 and represents Day 285 of the year (79% annual completion), leaving 11 weeks remaining.
Frequently Asked Questions
What ISO week number is 2026-10-12?
2026-10-12 falls in ISO Week Number 42 of ISO Year 2026.
What are the start and end dates for Week 42 (2026)?
ISO Week 42 begins on Monday, 2026-10-12 and ends on Sunday, 2026-10-18.
What is the day of year and quarter for 2026-10-12?
2026-10-12 is Day 285 of the year and falls in Quarter Q4.
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