Shorten appointments and meetings

This policy setting allows you to shorten the default duration of appointments and meetings by a specified number of minutes. If you enable this policy setting, you can choose between the following options: End Early, Start Late, None.
If you select End Early, meetings and appointments will end early by the specified number of minutes.
If you select Start Late, meetings and appointments will start late by the specified number of minutes.
If you select None, the default meeting duration will not be shortened.
In all cases, the settings for this feature will be disabled in the Outlook Options dialog.
If you don't configure this policy setting, users can modify these settings by going to File > Options > Calendar.

Note: This policy setting only applies to subscription versions of Office, such as Microsoft 365 Apps for enterprise.

Select the Shorten Events Type

0. None
   

   Registry Hive	HKEY_CURRENT_USER
   Registry Path	software\policies\microsoft\office\16.0\outlook\options\calendar
   Value Name	shortenevents
   Value Type	REG_SZ
   Value	None

1. End Early
   

   Registry Hive	HKEY_CURRENT_USER
   Registry Path	software\policies\microsoft\office\16.0\outlook\options\calendar
   Value Name	shortenevents
   Value Type	REG_SZ
   Value	End_Early

2. Start Late
   

   Registry Hive	HKEY_CURRENT_USER
   Registry Path	software\policies\microsoft\office\16.0\outlook\options\calendar
   Value Name	shortenevents
   Value Type	REG_SZ
   Value	Start_Late