I would like to use the TimeOfDay class without having to import the material dart file. The class currently sits in flutter/lib/src/material/time.dart. In my opinion it should be moved to a place that is covered by the cupertino file as well. (No idea where that is since I don't really know how the internals work)

Thanks in advance for any feedback as well as wether or not this Issue is written "correctly" haven't written that many issues yet.