"Lacking enough votes, the city faction tries to filibuster until time runs out on the session at midnight, but rural champion Rep. Herbert Copeland, R-Madison, leans over the gallery railing and forces the official clock back to 9 p.m., breaking it in the process. The clock sticks on 9 as the debate rages on into the night. The filibuster finally dies out and the bill passes, while outside the chamber, clocks read 3:30 a.m."
https://github.com/eggert/tz/commit/1c35d6d1dea74ff4cbc09a86dbb415b5387603fb