We've added a new feature that will allow you to get 45 extra seconds by watching an ad.
The option will appear once your turn ends. Bear in mind that you'll have to watch the entire ad in order to get the extra time. Should you close it before it ends, you won't get the reward.
If you have the ad-free version of the game, you'll get 3 times without seeing the ad. After using up those 3 times, you'll get the extra time by watching an ad.