The time acceleration power up appears on the right side of the screen. Tap on it and watch an advert to speed up time for a minute. Your crew members will work fast, gathering wood from trees and
Speed Up power-up appears frequently, so whenever you need a push in producing more wood at a very short span, get this power up ASAP.
Tip: After activating it, quickly tap on all floating planks to collect wood. Your crew members will quickly swim to the planks to get wood