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BT's Speaking Clock: is precisely 75 years old today

If you call BT's Speaking Clock today, not only can you hear the exact time, you can also hear a specially recorded message.

This is because the clock celebrates its 75th birthday.

The BBC's Andy Moore looks back at its history and asks why it still gets 30 million calls a year?

  • 24 Jul 2011
  • From the section UK
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