if a show starts at 5 pm what time would it normally end

It is never at 5 pm. The matinees are at 12 or 1 pm, evening performances at 7:30 or 8 pm, rarely at 6 pm. The duration depends on the title and the number of intermissions. It is posted at the site of the Opera.

You can see the length of each show on the website

Depent on wich kind off show. Italien opera 2 h.😀 Wagner 2 days😴