midnight
`` Oh , we ca n't . This is party night and what would grandma say ? '' `` We 'll never know if they talk unless we do stay up and listen -- and I 'd like to find out what they say . It 's just at midnight . That ai n't long . We go to bed at eight , and midnight is only twelve o'clock . We could stay awake easily till then , 'cause the people who are invited will be leaving just about that time .