about
2:30
The cannonade itself was conducive to slumber . The guns were fired at regular intervals , which created a sort of rhythm . The shells with their trailing white smoke ceased to interest him , and his eyelids grew heavier . It was now about 2:30 o'clock and as his eyes were about to close a sudden shout made him open them wide and then spring to his feet . `` Look out ! Look out ! '' cried Sergeant Whitley , `` The Johnnies are coming ! ''