Start and End properties specify the time of the activity in UTC. You can use the GetStartLocal and GetEndLocal methods to get the time relative to a specific time-zone. Also there are SetStartLocal and SetEndLocal methods that can be used to specify activity times that are relative to a specific time-zone.
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