Hi,

I will be arriving at Haneda airport at 4:00pm on a weekday. I have a bit of a layover with my connecting flight departing at 1:30am, so about a 9 hour layover. I'd like to visit Shibuya in the meantime, and it'll be my first time visiting Japan. I plan on taking the train both ways.

Can anyone share tips on making this visit as efficient as possible? I'd like to spend as much time in the city as possible. How are the trains during these hours, how long does customs take (I won't be bringing luggage into the city, just a small bag), best time to head back to the airport, places to eat, etc etc... Anything would be extremely helpful.

Thanks in advance!