| 摘要 |
A GPS reception section receives radio signals from a plurality of positioning satellites, and finds a latitude and a longitude of the device in which the GPS reception section is included, on the basis of information contained in the radio signals. The GPS reception section sends the information on the latitude and longitude to a calculation section as position information, extracts GMT time information and date information from the received radio signals, and outputs the information to the calculator. The calculation section reads out, from the database section, the time difference information and summer time information associated with the position information provided from the GPS reception section. Based on the read-out information, the calculation section subjects the time information provided from the GPS reception section to predetermined arithmetic processes and calculates a local time. A display section displays the calculated local time. |
