Just follow these simple steps. Close your app by either restarting your phone or by killing it on your task manager. Set your time in advance for at least 1 day above. Open Total Conquest and you will see that the cooldown is gone and you can build/upgrade play again. If you decide to build/upgrade more, just follow step 2. If you want to go back at your current date just follow these steps: Follow the steps mentioned above. Then open Total Conquest but do not play. Go to settings and change your time/date to your current time/date. Open Total Conquest just to make sure that there are no problems.