title: Countdown Timer in Unity with Photon's PUN 2
body: <p>In my game I need to create a timer countdown that synchronizes for all players, this Timer need to be on DontDestroyOnLoad (support scene changes) because in my game there are a lot of these scene changes. Do you know how can I do this?
  PS: I'm using Photon's PUN2, So, almost nothing of PUN1 will work. </p>