Week 40, 2025: Sep 29 – Oct 5
even week September / October 2025
Start date
Monday, September 29, 2025
End date
Sunday, October 5, 2025
ISO 8601 week (Monday to Sunday). In the US system used by Outlook and Excel WEEKNUM, this is week 40.
week 40
| Day | Date |
|---|---|
| Monday | Mon, Sep 29, 2025 |
| Tuesday | Tue, Sep 30, 2025 |
| Wednesday | Wed, Oct 1, 2025 |
| Thursday | Thu, Oct 2, 2025 |
| Friday | Fri, Oct 3, 2025 |
| Saturday | Sat, Oct 4, 2025 |
| Sunday | Sun, Oct 5, 2025 |