Week 42 2023: October 16–22, 2023
Week 42 starts on Monday, October 16, 2023 and ends on Sunday, October 22, 2023.
Quick answer
Week 42 of 2023 is the seven-day ISO week from October 16, 2023 to October 22, 2023. ISO weeks always run from Monday to Sunday.
Use week 42 in professional planning
This permanent week reference can be used in project plans, payroll notes, weekly reports, production schedules and deadline documents. Share the week number together with the ISO year and exact date range to avoid ambiguity around New Year.
For calculations that span more than one week, use the weeks between dates calculator. For work schedules, compare the same range with the business days calculator or open the project timeline calculator.
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FAQ
What are the dates for week 42 of 2023?
The dates are October 16, 2023 through October 22, 2023.
What day does this week start?
It starts on Monday.
What day does this week end?
It ends on Sunday.
How should I write this week in a report?
Use “ISO week 42 of 2023 (Oct 16–Oct 22, 2023)” so the week-year and date range are both clear.