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Sirix sent a time signal explaining when he would return.

A time signal is given when 15 minutes remain.

The watch was reading time signals from the same satellite that the museum's security system used.

I wish we could get a time signal from Earth.

At the end of the number there was a time signal followed by a commercial about a breakfast food.

This continued until the 1940s, when time signals began to be broadcast using the radio by the government.

Though its not the wrong position its just a less accurate time signal.

One sort of public time signal is a striking clock.

The 9:00 pm firing was later established as a time signal for the general population.

Since 1905 time signals have been transmitted by radio.