ISO week reference

Week 42 2031: October 13–19, 2031

Exact Monday-to-Sunday dates for 2031-W42. Use this week as a calendar reference, open it in the planner, or view it in the full 2031 ISO calendar.

Plan This Week Open 2031 Calendar

Week42

ISO year2031

Weekdays5

QuarterQ4

ISO reference2031-W42

StartsOct203110, Oct 13

Endsth73751710, Oct 19

Length7 days

Exact dates

Dates in week 42

ISO weeks run Monday through Sunday.

MonOct 132031

TueOct 142031

WedOct 152031

ThuOct 162031

FriOct 172031

SatOct 182031

SunOct 192031

Use this week

Turn these dates into a plan

Open a private weekly planner already set to October 13–19, 2031, then add priorities, deadlines, meetings and hourly work blocks.

Open Week 42 Planner

Year calendarAll 52 ISO weeks in 2031 Quarter viewSee Week 42 inside Q4

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