I counted like 7 or 8 different visited areas. But about 4 or 5 of them looked like they would take up 'time' if they were in P3/4.
Obviously stuff like visiting shops or the school stuff wouldn't, but he seemed to work multiple jobs, hand out with ryuji, go to the movies, go into a dungeon, do 2 different night activities all in what was implied to be 1 day.
If you have to choose how to spend your time 5 or 6 times a day instead of 2 times a day like in P3/4 then that's crazy
.
It might not be all that stuff in just one day, could just be a trailer "this is all the things you could do" thing.