The seaplane air service, the China Clipper, was due at Oahu at 0830 on 7 December. However the pilot had delayed his departure from Treasure Island in order to attend his daughter's piano recital and the revised arrival time was 1030. He was warned by radio of the attack in progress and diverted to Hilo on the Big Island, Hawaii, of the Hawaiian Islands.
See also: Hawaiian Islands
You can find out more about China Clipper in the following Osprey book: