Dates in week 40
- Monday — September 28, 2026
- Tuesday — September 29, 2026
- Wednesday — September 30, 2026
- Thursday — October 1, 2026
- Friday — October 2, 2026
- Saturday — October 3, 2026
- Sunday — October 4, 2026
Week 40 of 2026
Week 40 runs from Monday, September 28, 2026 through Sunday, October 4, 2026.
Week 40 at a glance
ISO weeks always run Monday through Sunday. Week 1 is the week containing the year’s first Thursday.