Time Signal

A time signal is a visible, audible, mechanical, or electronic signal used as a reference to determine the time of day.

Read more about Time Signal:  Audible and Visible Time Signals, Electrical Time Signals

Famous quotes containing the words time and/or signal:

    “Not yet the thirtieth year, the thirtieth
    Station where time reverses his light heels
    To run both ways, and makes of forward back;
    Whose long co-ordinates are birth and death....”
    —Allen Tate (1899–1979)

    “By day thy warning ringing bell to sound its notes,
    By night thy silent signal lamps to swing.”
    —Walt Whitman (1819–1892)