Certain activities have start and end times that are time-zone neutral. Holidays are an example of that where a holiday starts at a certain time, let's say 12:00 AM, in every time-zone. Likewise you can have activities that are time-zone neutral as well. Such activities start at the same numerical time value in any time-zone, and thus the actual UTC times when the activity starts will vary across time-zones.
When an activity is time-zone neutral, the values of Start and End properties are time-zone neutral times that are interpreted as local times.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2