That’s two separate topics, @Kelly_Nickell !
For topic #1 there are plenty of posts on this topic in this forum - please search for “stop timer”. Here’s an example: Text stops timer when clicked - #3 by techleapnz
For topic #2, just copy the function with Ctrl+C in scene 1 and paste into Scene 2 code with Ctrl+V. When sharing data across scenes or scripts, use CoSpace Properties (global variables).
Hope that helps!
Geoff @ TechLeap