two o'clock in the morning
`` Right shoulder arms ! By twos , left march ! '' Three minutes later the man on post three had been relieved , Hal having been dropped into his place . It was just after two o'clock in the morning when Private Hal Overton began to pace his post , watching the relief vanish in the darkness in the direction of post number four . Then he heard a sentry 's hail : `` Halt ! Who goes there ? '' `` The relief . ''