My testing of the Tools/Time function leads me to believe that it was better implemented under F/W 1.09. Yes, 1.09 functioned differently than than 1.08, but if you enabled daylight savings and set the DST start and end dates, the system seems to keep/display a fairly accurate time. F/W 1.10b5 and 6 functioned more like 1.08 and the reported time was generally incorrect when I checked it.