I have a problem with my actual speedrun. I don't know how to put a chronometer / timer on my speedrun video, and I think this would be a problem when verifying if my run is okay. Other information, I'm on Linux (Ubuntu 16.04), and my PC can't afford editing softwares. Thanks for your future replies.

Hey! Its not a problem, in happyland we dont need to have times to miliseconds. I will just subtract start from end to verify time. Try to use wsplit and add this on obs.

Have fun! :)

Finally I added a timer with Kdenlive (that is working on Linux ^^') and I'll post my run when the render finishes.