ISO week reference

Week 20 1978: May 15–21, 1978

Exact Monday-to-Sunday dates for 1978-W20. Use this week as a calendar reference, open it in the planner, or view it in the full 1978 ISO calendar.

Week20
ISO year1978
Weekdays5
QuarterQ2
ISO reference1978-W20
Starts
Ends
Length7 days
Exact dates

Dates in week 20

ISO weeks run Monday through Sunday.

MonMay 151978
TueMay 161978
WedMay 171978
ThuMay 181978
FriMay 191978
SatMay 201978
SunMay 211978
Use this week

Turn these dates into a plan

Open a private weekly planner already set to May 15–21, 1978, then add priorities, deadlines, meetings and hourly work blocks.

Open Week 20 Planner