Comment choisir la durée des clash (comment mettre 15 a la place de 5 ?)

et aussi comment choisir la langue.

Clashes last 15 minutes and are written in English.

non parfois c’est 5minutes et je ne sais pas pourquoi ?

Comment régler sur 15 minutes quand le clash est reglé sur 5 ???
c’est ca ma question !!!

Where do you see a clash where the timer starts at 5:00? As far as I know, all clashes last 15 minutes; it’s only the old version of the contribution guidelines which mentions that clashes should be designed so that they can be finished within 5 minutes.