ISO week reference
Week 52 2027: December 27, 2027 – January 2, 2028
Exact Monday-to-Sunday dates for 2027-W52. Use this week as a calendar reference, open it in the planner, or view it in the full 2027 ISO calendar.
Week52
ISO year2027
Weekdays5
QuarterQ4
ISO reference2027-W52
Starts
Ends
Length7 days
Exact dates
Dates in week 52
ISO weeks run Monday through Sunday.
MonDec 272027
TueDec 282027
WedDec 292027
ThuDec 302027
FriDec 312027
SatJan 12028
SunJan 22028
Use this week
Open Week 52 Planner
Turn these dates into a plan
Open a private weekly planner already set to December 27, 2027 – January 2, 2028, then add priorities, deadlines, meetings and hourly work blocks.