Any Stanley Cup game is charged with excitement, but no one was prepared for the action of the 1936 semi-final hockey game between the Detroit Red Wings and the Montreal Maroons. It began on March 24 and did not end until the following day.
After three periods of regulation-time hockey the score was tied at 0-0. The first overtime period saw no goals. Neither did the second, third, or fourth. Both teams almost scored in the fifth overtime period, but great defensive play prevented a goal.
The game finally ended after 16 minutes and 30 seconds of the sixth overtime period when Hec Kilrea of Detroit passed to teammate Moderre “Mud” Brunuteau, who poked the puck into the net.
By then it was 2:25 in the morning. The teams had played almost nine periods of hockey in that single game, a total of 176 minutes and 30 seconds since the opening faceoff. Exactly 116 minutes and 30 seconds were overtime.
From The Giant Book of More Strange But True Sports Stories by Howard Liss. Illustrations by Joe Mathieu.
https://www.nhl.com/news/this-date-in-nhl-history-march-24/c-279805016
The Red Wings goalie lost 12 pounds during the game and made 92 saves.