Automatic Determination of Local Time for Terrestrial Broadcast Digital Television Receiver

A method by which a DTV receiver that receives a terrestrial broadcast DTV signal may automatically determine the local time for the local terrestrial broadcast region, as well as DTV receivers that implements such a method, is described. The method includes obtaining a unique identifier of a terrestrial broadcast signal, wherein the unique identifier is transmitted as part of the terrestrial broadcast signal, accessing a memory to obtain a local time offset and a Daylight Savings Time (DST) observance indicator associated with the unique identifier, and calculating the local time based on the local time offset and the DST observance indicator. Additional methods for providing channel availability information to a user based on the unique identifier are described.