ISO week details

Week 27 1983: July 4–10, 1983

Week 27 starts on Monday, July 4, 1983 and ends on Sunday, July 10, 1983.

Week27
ISO year1983
StartJul 4
EndJul 10

Quick answer

Week 27 of 1983 is the seven-day ISO week from July 4, 1983 to July 10, 1983. ISO weeks always run from Monday to Sunday.

Use week 27 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 27 of 1983?

The dates are July 4, 1983 through July 10, 1983.

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 27 of 1983 (Jul 4–Jul 10, 1983)” so the week-year and date range are both clear.