time signal

US /ˈtaɪm ˌsɪɡ.nəl/
UK /ˈtaɪm ˌsɪɡ.nəl/
"time signal" picture
1.

時間信號, 報時信號

an audible signal indicating the exact time, typically broadcast on radio or television

:
The radio station broadcasts a time signal every hour on the hour.
廣播電台每小時整點播報一次時間信號
My watch is set to the atomic time signal for accuracy.
我的手錶已根據原子時間信號校準以確保準確性。