half past
three
How long can you stay ? '' He took her in his arms and kissed her eagerly while she explained that she could not stay long . She had said she was going to the library , which her mother had endowed , for a book . She must be there by half past three or four at the least . `` Oh , we can talk a great deal by then , '' he said gaily . `` Here comes the car . Let 's get in . ''