about 1 o'clock
`` Silent 's lines were now formed and ready to attack or resist . Thus they lay during the fifth night . On the next morning orders were issued to assault the enemy 's center at 10 o'clock . Some movement of the enemy delayed the assault , and about 1 o'clock the enemy pressed forward to attack , which they did with great vigor . They were repulsed with great loss and fell back in confusion . They reformed and came forward again . The contest now became fierce and even terrific .