LEARNit Dictionary
time signal
noun
/ˈtaɪm sɪɡnəl/
UK
/ˈtaɪm sɪɡnəl/
US
1
a sound or sounds that show the exact time of day, especially a series of short, high sounds that are broadcast on the radio
سیگنال زمانی, علامت زمانی, علامت رادیویی زمان