Include appointments only within working hours
Supported on: At least Windows Server 2008 R2 or Windows 7
Registry
HKCU
software\policies\microsoft\office\16.0\outlook\options\pubcal Value name: showworkinghoursonly
Enabled: showworkinghoursonly = 1
Disabled: showworkinghoursonly = 0
Description
By default, all appointments in a calendar are included when that calendar is shared through e-mail or by using the Office.com Sharing Service. This setting allows users to publish only appointments that are within users' working hours.