Time of delivering the ball

What is the time it takes an average ML’er to get the ball to home? I know 1st base coaches time pitchers with a stop watch and if its more than a certain time they’ll send the runner if its less then they probably wont. So my question is, does anyone know what that number is?

I may be mistaken but, I think 1.3 seconds or something like that.

Thanks

I’m thinking that 1.3 seconds might be to release the ball - not get it to the catcher.