The Great Conflict

You have found the main supports! Various stone and wooden pillars that support the temple are located in this room. Wooden beams support these pillars and you can tell new supports have recently been put in to hold the temple up. As you approach the pillars to place the antimatter charge you hear foot steps approaching. Soon you sense the light of a torch and realize some of the peasants have banded together in an attempt to stop you. Three large men armed with an axe, scythe, and club enter the room. The largest one speaks out and says, "Die you vile minion of Satan! We will not let you corrupt this sacred place. You have destroyed our leader and we shall destroy you!" They then charge with their weapons and you almost laugh at the feeble attempt. With a single burst of bullets you are able to dispose of all of the attackers. It seems that they almost want to die and meet their "father". With these men disposed of you take the anti-matter charge from your belt and fasten it to the largest support. Now you must decide how much time you wish to set it for. This amount of time will determine how long before the entire temple is obliterated. How long shall you set it for?