I want a leaderboard that shows who beat the game fastest. I’m exploring new ground because I don’t know how to use clocks that last the whole game and I’ve never used leaderboards before.
Here’s my game.
Is it even possible to reset a clock?
yes it is possible. 
So you’d probably want to use a Timer set to every second, then that can be used as the time.
Use a Global, those values will stay between levels.
You can use a Clock, but a Timer is probably just simpler for you
I made my own clock using timers that had all the features I wanted.