While playing the game, press Shift + F1 or – Tilde to display the console window. Then, type one of the following codes and press [Enter] to activate the corresponding cheat function.
To list all the COMMANDs you can use, open the console in-game and type in help
Code – Effect
Ohhappyday – Switching the time to morning
Fps – Show or Hide Current FPS
Clear – Clears Console Screen
Help – Shows Console Commands documentation