How do I store time from one scene and then display in another??

I have a game with 3 levels with each level on a different scene. There is also a new scene after is level which I need to display the time it took the player to do the past level. I'm using time.TimeSinceLevelLoad to show the time as the player is playing the level, but I need help on how to stop the timer, get the current time when it was stopped, and then displaying that time in a different scene. By the way, the scripts are in C#.

This is urgent, so please help! Thanks