Calendar week numbers

Supported on: At least Windows Server 2008 R2 or Windows 7

Registry

HKCU software\policies\microsoft\office\16.0\outlook\options\calendar

Value name: weeknum

Enabled: weeknum = 1

Disabled: weeknum = 0

Description

By default, week numbers are not shown in the Date Navigator in the Calendar. You can change this behavior to show week numbers in the Date Navigator by enabling this setting.