Trash days 5~8am, normal days in any place with many restaurants 11pm~8am basically (Shibuya, Ebisu, Shinjuku, Ikebukuro, etc).

That would be more attributed to the multiple day trash picking depending on which type, though right?

I mean Tuesday: burnable waste, wed cardboard, Thurs clothes and Fri other, will tend to have trash in the designated areas, on each of those days.

Edit:spelling (Note:days and trash types differ a lot per area, but it's a good generalisation based off of my location).

That's one thing for sure, but I attribute it most to the lack of dumpsters. I am not sure why they were banned, the trash cans supposedly because of terrorism, but the larger containers/dumpsters would make the city so much cleaner and better.

Tip: when there's a typhoon, restaurants close and there's no trash on the street, the rats invade nearby shops looking desperately for food:

https://www.youtube.com/watch?v=BkpV_fCeuIE

To be fair to Tokyo I doubt there's a major city in the world that doesn't have rats unless rats can't live in a super hot desert or frozen tundra.

It's a matter of how contained/controlled/visible they are.

Calgary and Edmonton.

Nice, ratatouille BTFO: https://www.alberta.ca/albertas-rat-control-program.aspx