Timezone vs Time functions

Hi all,

I have been trying to piece the puzzle together slowly but could use some guidance now. If I were to set a timezone on a cbot using

[Robot(TimeZone = TimeZones.TasmaniaStandardTime, AccessRights = AccessRights.None)]

then does that make all time based calculations follow that? Say for instance I am using 

_BBMstartTime = Server.Time.Date.AddHours(BBMStartTime);

Does that refer to Server time which is UTC+0 or do I base my numbers off my local timezone that was set at the start of the robot.

Any help on this topic or input is much appreciated.

Thanks,

Tony