Concerts used to be even longer!
On December 28, 1808 Beethoven premiered His 5th and 6th Symphonies, the Mass in C, the Fourth Piano Concerto, and the Choral Fantansia! I think the concert lasted about 4 hours. And everyone was freezing and uncomfortable, as the hall was unheated. By evening, when the 5th was performed last, no one cared!!