I might have been wrong about the times on my comment. I noticed when doing a video that the play timer counted too fast (when I finished Combat Basics with Alyssa, I got around 5 hours but that wouldn't be possible based on the lengths of the videos I made) then I realized it may be due to my display being over 60 Hz since my Aorus 15G laptop has a 240Hz display (my ViewSonic XG240 has a 144 Hz display). RPG Maker MV seems to have a bug where the game runs faster if the monitor is over 60 Hz which commonly affects gaming monitors and some gaming laptops. While Lawmage Academy runs fine since it has the YEP_FpsSynchOption plugin, the play timer will count too fast when over 60 fps (the Event Timer is unaffected although nothing in the game uses the Control Timer command) due to the monitor being over 60 Hz.
This could be fixed by either changing the monitor's refresh rate to 60 Hz or editing the package.json file and adding the line "chromium-args": "--limit-fps=60" to cap the game to 60 fps. I tested it with my game where I edited the file and the play timer works correctly.