On iPhone cell tower triangulation

Did you know that the clock on the iPhone home screen is intelligently synced to the triangulation feature in google maps. A general estimate of location is good enough to set the time zone by. However, triangulation does not work well in a building. Right now my iPhone tells me that it is 2:23 PM. It is currently 10:23. Cool feature, it just has a little trouble with buildings.
Apropos, I have found Google maps triangulation to be present in one other aspect of the system: the pane of the weather widget when the program is started is synced to the location, but only if you have that location in your weather places.