ISO week details

Week 50 1940: December 9–15, 1940

Week 50 starts on Monday, December 9, 1940 and ends on Sunday, December 15, 1940.

Week50
ISO year1940
StartDec 9
EndDec 15

Quick answer

Week 50 of 1940 is the seven-day ISO week from December 9, 1940 to December 15, 1940. ISO weeks always run from Monday to Sunday.

Use week 50 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.

FAQ

What are the dates for week 50 of 1940?

The dates are December 9, 1940 through December 15, 1940.

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 50 of 1940 (Dec 9–Dec 15, 1940)” so the week-year and date range are both clear.