Radio clock
01
ラジオ時計, ラジオ目覚まし時計
a clock that automatically adjusts its time by receiving signals from a radio station, keeping it accurate without needing to be manually adjusted
例
The radio clock synchronized with the time signal and showed the correct time.
ラジオ時計は時間信号と同期し、正確な時刻を表示しました。
