ISO week reference

Week 1 1159: December 29, 1158 – January 4, 1159

Exact Monday-to-Sunday dates for 1159-W01. Use this week as a calendar reference, open it in the planner, or view it in the full 1159 ISO calendar.

Plan This Week Open 1159 Calendar

Week1

ISO year1159

Weekdays5

QuarterQ4

ISO reference1159-W01

StartsDec115912, Dec 29

Endsth8314721, Jan 4

Length7 days

Exact dates

Dates in week 1

ISO weeks run Monday through Sunday.

MonDec 291158

TueDec 301158

WedDec 311158

ThuJan 11159

FriJan 21159

SatJan 31159

SunJan 41159

Use this week

Turn these dates into a plan

Open a private weekly planner already set to December 29, 1158 – January 4, 1159, then add priorities, deadlines, meetings and hourly work blocks.

Open Week 1 Planner

Year calendarAll 53 ISO weeks in 1159 Quarter viewSee Week 1 inside Q4

PreviousWeek 52, 1158Dec 22–Dec 28 Year calendar1159 ISO week calendarBrowse every week and exact date range NextWeek 2, 1159Jan 5–Jan 11