This booster can be activated only on timed levels, before the game starts.It adds 15 more seconds to the game and it appears again when you fail the level.
Though 15 seconds doesn’t seem like much, it can be very helpful on the later timed levels that require you to score a lot of points in a short amount of time. Sometimes 5 seconds extra is all you need to beat the level.
This is one of the boosters that you cannot get from the Daily Booster Wheel and the Sugar Track.
Watch all Candy Crush boosters in the video below: