The 1980 game started at 8 and lasted 3:45. I think there was a rain delay which brought it up to 1:00.
I liked when the leagues were separate and there was no interleague play. The all-star game and World Series were more fun because it was the only time the leagues would meet. There were always debates about which league was better - not only in talent but style of play. In the 70s, the NL was regarded as being more speedy, athletic and tough. There was no agreement on talent. Whichever league your favorite team was in was the superior league. The NL used to win the all-star game all the time..but not the World Series.