Last Update: 07-25-2022 @ 02:55
4.03 – Running Time
The running time of a clock is the third point of view of the taxonomy. The source of its power limits its running time. Weight mechanical clocks seem limited by the time weights take to go down. The springs’ length and thickness seem to limit the working time of mechanical clocks. But it is more complicated than that. It’s a set of factors that determine mechanical clocks’ running time, including escapement, gears, and pendulum. In both cases, the minimum duration is 30 hours and eight days, except for most alarm clocks that run for 24 hours. Some spring clocks go up to 14 days, but most often, it’s 31 days. The exception is anniversary clocks that can run 400 or 1000 days without rewinding.
In theory, clocks connected to the alternating electric current should run all the time, but power outages happen. Battery-powered electric clocks work until exhausted. Finally, some clocks have a perpetual movement.
4.03.1 – Running Time of Weight Clocks
4.03.2 – Running Time of Mainspring Clocks
4.03.3 – Running Time of Electric Clocks
4.03.4 – Perpetual Running
Next: 4.04 – Alarms and Chimes