ISO week reference

Week 42 2021: October 18–24, 2021

Exact Monday-to-Sunday dates for 2021-W42. Use this week as a calendar reference, open it in the planner, or view it in the full 2021 ISO calendar.

Plan This Week Open 2021 Calendar

Week42

ISO year2021

Weekdays5

QuarterQ4

ISO reference2021-W42

StartsOct202110, Oct 18

Endsth21600710, Oct 24

Length7 days

Exact dates

Dates in week 42

ISO weeks run Monday through Sunday.

MonOct 182021

TueOct 192021

WedOct 202021

ThuOct 212021

FriOct 222021

SatOct 232021

SunOct 242021

Use this week

Turn these dates into a plan

Open a private weekly planner already set to October 18–24, 2021, then add priorities, deadlines, meetings and hourly work blocks.

Open Week 42 Planner

Year calendarAll 52 ISO weeks in 2021 Quarter viewSee Week 42 inside Q4

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