High Quality Content by WIKIPEDIA articles! A speaking clock service is a recorded or simulated human voice service, usually accessed by telephone, that gives the correct time. The format of the service is somewhat similar to those in radio time signal services. Every ten seconds or so, a voice announces "At the third stroke, it will be [for example] twelve forty-six and ten seconds...", with three beeps following. At the third beep, the time at that point is the time announced previously.