Week Number to Date Converter
Enter a week year and week number to find the start date, end date, all seven days, and planning details.
- Week
- Week 51 of 2026
- Week system
- ISO
- Start date
- 2026-12-14
- End date
- 2026-12-20
- ICS summary
- Week 51, 2026
All 7 days
- Monday
- Tuesday
- Wednesday
- Thursday
- Friday
- Saturday
- Sunday
Business days this week
Standard Monday-Friday count. Public holidays are not subtracted.
Business days
5
Weekend days
2
December 2026
ISO week numbers in the first column.
| Wk | Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|---|
| 49 | |||||||
| 50 | |||||||
| 51 | |||||||
| 52 | |||||||
| 53 | |||||||
| 1 |
Calendar export
Download this week as an all-day calendar event for Apple Calendar, Google Calendar, Outlook, or any app that supports ICS files.