: To regularly shut down your PC at the same time every night, search for Task Scheduler Create Basic Task
If you are looking to when your PC turns on or off: PC On Off Time
The implications of these cycles are profound. From a hardware perspective, the "on off" cycle is a stress test. While modern solid-state drives are robust, the thermal expansion and contraction caused by powering up and cooling down can wear components over time. Conversely, leaving a PC on 24/7 accumulates dust and maintains a constant thermal load. There is a hidden cost to the "on" time; the hum of the cooling fans and the glow of the RGB lights represent a continuous drain on resources and a contributor to the device’s eventual obsolescence. : To regularly shut down your PC at