time signal
US /ˈtaɪm ˌsɪɡ.nəl/
UK /ˈtaɪm ˌsɪɡ.nəl/

1.
isyarat masa
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.
Stesen radio menyiarkan isyarat masa setiap jam tepat.
•
My watch is set to the atomic time signal for accuracy.
Jam tangan saya ditetapkan kepada isyarat masa atom untuk ketepatan.