You still need to ensure the timezone is set correctly in the device settings if you want SkyDemon to reliably convert such times to "local" time.
Not a big deal to change device clock manually but would it not be better to use a precise time feed? Better still is there aWinCE setting that updates the internal clock whenever a GPS feed appears.
Again, not sure I am right about this but I think igo8 uses the satellite time in its ETA calculations and so it should be possible.
D