It was 75 years ago that the broadcast of Canada’s official time signal was first heard on CBC Radio (November 5, 1939), as war was being waged in Europe. Since then, listeners all across the country have used “the beginning of the long dash” to set their clocks to the exact time.
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NRC houses and operates the precision clocks that disseminate the time signal, and is responsible for the metric system and the standard for mass in Canada.
— Anthony Capkun, Editor,
Answering “Do you have the time?” for 75 years
November 5, 2014 - “Today marks the 75th anniversary of Canada’s longest-running radio program—the National Research Council Time Signal,” announced Ed Holder, Canada’s minister of state (science and technology). “Over the decades, Canadians and Canadian businesses have depended on the long dash as the standard by which to set their clocks.”