What Airline?

An airline pilot flying over the southeastern U.S. called the local tower and said, "We are passing over at 35,000&md;give us a time check." The tower said, "What airline are you?" "What difference does it make? I just want the time." replied the pilot.

The tower responded, "Oh, it makes a lot of difference. If you are TransWorld Airline or Pan Am, it is 1600. If you are United or Delta, it is 4 o'clock. If you are Southern Airways, the little hand is on the 4 and the big hand is on the 12. If you are Skyway Airlines&md;it's Thursday."