Dates in week 51
- Monday — December 14, 2026
- Tuesday — December 15, 2026
- Wednesday — December 16, 2026
- Thursday — December 17, 2026
- Friday — December 18, 2026
- Saturday — December 19, 2026
- Sunday — December 20, 2026
Week 51 of 2026
Week 51 runs from Monday, December 14, 2026 through Sunday, December 20, 2026.
Week 51 at a glance
ISO weeks always run Monday through Sunday. Week 1 is the week containing the year’s first Thursday.