ISO week reference
Week 41 2025: October 6–12, 2025
Exact Monday-to-Sunday dates for 2025-W41. Use this week as a calendar reference, open it in the planner, or view it in the full 2025 ISO calendar.
Week41
ISO year2025
Weekdays5
QuarterQ4
ISO reference2025-W41
Starts
Ends
Length7 days
Exact dates
Dates in week 41
ISO weeks run Monday through Sunday.
MonOct 62025
TueOct 72025
WedOct 82025
ThuOct 92025
FriOct 102025
SatOct 112025
SunOct 122025
Use this week
Open Week 41 Planner
Turn these dates into a plan
Open a private weekly planner already set to October 6–12, 2025, then add priorities, deadlines, meetings and hourly work blocks.