Duration of touch ?

Hello, after some research I did not find what I want to do:

How to calculate / retrieve the duration of touch? It's possible?

Thank you

Start a timer when the touch starts, stop it when the touch ends. By 'timer', I mean a variable where you add dt every tick, since there's no object to which to apply the timer behavior.

Good idea. I'll try to do it like that.

Thank you sqiddster