| 摘要 |
A world clock is provided to change a region name conveniently by attaching and detaching a naming member to and from a sub display unit. A world clock comprises a case(20), a main display unit(40), a sub display unit(60) and a naming member(80). The main display unit is installed in the case and indicates time of the present region. The sub display unit indicates time of at least one other region in the main display unit. The naming member for changing the name of the region is formed to be attached to and detached from the sub display unit.
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