Half day plan 

Imperial palace and Ginza

From Otemachi  (Metro station)

Imperial palace (45min) (If you want to visit East garden, too (90min.)

From Otemachi station to Ginza area (Ginza or Higashi ginza station)

*If you have 2 hours more, you can chance to watch one-play of kabuki performance)

Hotel

Please send me if you have any comments or questions on this plan.