Originally Posted by
AlwaysAisle
Although Tokyo is one of largest metropolitan cities in the world, it is not 24 hrs. city. Many museums and gardens for tourists do close by 5 - 6 p.m., and many restaurants do close by 11 - 12 p.m.
Don't want to mislead the OP...though public transit options generally finish around 12-1, and many restaurants close then, too, OP won't be bereft of places to get food. Convenience stores are everywhere, and actually have decent stuff.