Week 16 1669: April 15–21, 1669
Week 16 starts on Monday, April 15, 1669 and ends on Sunday, April 21, 1669.
Quick answer
Week 16 of 1669 is the seven-day ISO week from April 15, 1669 to April 21, 1669. ISO weeks always run from Monday to Sunday.
Check the current work week
Need today’s week instead? Open the current work week dashboard for the live ISO week number, Monday-to-Sunday range, business days left and Friday planning date.
Use week 16 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 16 of 1669?
The dates are April 15, 1669 through April 21, 1669.
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 16 of 1669 (Apr 15–Apr 21, 1669)” so the week-year and date range are both clear.