Four o'clock
Were n't some orders sent along the line a little while ago ? '' `` Yes , the older men took 'em . What time is it , George ? '' `` Four o'clock . '' Then he closed his watch with a snap , and added : `` The battle has begun . '' The heavy report of a cannon came from the Southern right under Longstreet . It sped up the valleys and returned in sinister echoes .