half past two o'clock
`` The _ Rainbow _ . '' `` That 's a good name , for a rainbow is a sign of good promise , '' was Songbird 's comment . The party had to make one change of cars and had their dinner on the train . They arrived at the Grand Central Depot at half past two o'clock and the Rovers went to a nearby hotel , taking Aleck with them , while Songbird hurried off to transact his business with his uncle . Mr. Rover had to meet some men who were interested in his mining ventures in the far west , and so , after accommodations had been obtained , he hurried off , leaving the boys to their own devices . `` Let us take a stroll down Broadway , '' suggested Sam , to whom the sights of this busy thoroughfare were always interesting . The others were willing , and they passed through Forty-second street to Broadway and then turned southward .