ISO week reference

Week 4 2029: January 22–28, 2029

Exact Monday-to-Sunday dates for 2029-W04. Use this week as a calendar reference, open it in the planner, or view it in the full 2029 ISO calendar.

Plan This Week Open 2029 Calendar

Week4

ISO year2029

Weekdays5

QuarterQ1

ISO reference2029-W04

StartsJan20291, Jan 22

Endsth7666481, Jan 28

Length7 days

Exact dates

Dates in week 4

ISO weeks run Monday through Sunday.

MonJan 222029

TueJan 232029

WedJan 242029

ThuJan 252029

FriJan 262029

SatJan 272029

SunJan 282029

Use this week

Turn these dates into a plan

Open a private weekly planner already set to January 22–28, 2029, then add priorities, deadlines, meetings and hourly work blocks.

Open Week 4 Planner

Year calendarAll 52 ISO weeks in 2029 Quarter viewSee Week 4 inside Q1

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