Oh shoot! Yeah, I'm sorry reloading doesn't work as expected! :c I'll test that more thoroughly next jam! And yeah, lol, I made it for a game jam a few days after I finished rdr2!
If you can manage to keep the tab open, or the application running in the background, the timers should work okay! There is a secret ending if you're patient (don't let Dutch think about any plans!), but even that should only take around an hour. ^__^ Good luck!