The best time to travel is in the spring or autumn, because then you have the least chance of bad weather and wonderful temperatures of around 20 degrees, which are perfect for a city trip. In addition, the sakura is in full bloom and there are many festivals and parties.
So you can easily stay in Tokyo for a longer period of time and see a lot. How much time you need to set aside for Tokyo, of course, mainly depends on your available time, but you actually need 5 -7 days.
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