ISO week reference

Week 20 1999: May 17–23, 1999

Exact Monday-to-Sunday dates for 1999-W20. Use this week as a calendar reference, open it in the planner, or view it in the full 1999 ISO calendar.

Week20
ISO year1999
Weekdays5
QuarterQ2
ISO reference1999-W20
Starts
Ends
Length7 days
Exact dates

Dates in week 20

ISO weeks run Monday through Sunday.

MonMay 171999
TueMay 181999
WedMay 191999
ThuMay 201999
FriMay 211999
SatMay 221999
SunMay 231999
Use this week

Turn these dates into a plan

Open a private weekly planner already set to May 17–23, 1999, then add priorities, deadlines, meetings and hourly work blocks.

Open Week 20 Planner