five o'clock
At four o'clock in the afternoon he ordered all his guns to fire upon that weak northwest angle . `` Then Croghan and his men set to work to strengthen it as much as possible . They piled bags of sand and sacks of flour against the pickets there , which materially broke the force of the cannonade . At five o'clock a dark thunder cloud was seen in the west and the thunder seemed like the echo of the enemy 's cannon . Then the British came on in two close columns , led by Brevet Lieutenant-Colonel Short and Lieutenant Gordon . At the same time a party of grenadiers , about 200 strong , under Lieutenant-Colonel Warburton , took a wide circuit through the woods to make a feigned attack upon the southern front of the fort , where Captain Hunter and his party were stationed . `` There was in the fort at the time a man named Brown , a private of the Petersburgh volunteers , with a half-dozen of his corps and Pittsburgh Blues .