hi there,
it would be helpful and reduce thinking 
IF sketchup would ask or at least givea hint to apply the correct timezone after geolocation was set…
furthermore, a “setting” to apply summer winter time would be nice… either in shadows or in generall model settings … maybe even in the geolocation settings…
also i just found out, that the utc time settings do not get saved with scenes?! what the heck?
this is bad i think 
best, a tremendously lazy user:)