How to handle timescale when using admob?

ADMob automatically sets the timescale to 0 when showing an ad, so that the game doesn't run in the background. If you want the timescale to be continued with value 0 after you close the ad, you can implement the AdClose Handle:

 this.rewardedAd.OnAdClosed += HandleRewardedAdClosed;

and in the method you set your timescale to 0

 public void HandleRewardedAdClosed(object sender, EventArgs args)
     {
         Time.timeScale = 0;
     }