| 摘要 |
A timepiece time having installed in the movement thereof a CPU, a time zone adjustment device and a time display unit, the CPU having installed therein a perpetual calendar program, a time zone calculation program, and a daylight saving time calculation program, the time zone adjustment device being operable to input a time zone signal to the CPU for enabling the time zone calculation program to calculate the conversion time corresponding to the set time zone and for enabling the daylight saving time calculation program to determine whether the set time zone has applied daylight saving time, such that the time display unit is controllable by the CPU to automatically adjust displayed time and to automatically enter/withdraw from the daylight saving time cycle of the corresponding time zone subject to calculation of the time zone calculation program and the daylight saving time calculation program.
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