LEADING scientists from around the world are meeting in Britain from today to consider a proposal that could eventually see Greenwich Mean Time relegated to a footnote in history.
For more than 120 years, GMT has been the international standard for timekeeping, but it is now under threat from a new definition of time itself based not on the rotation of the Earth, but on atomic clocks

That would see atomic time slowly diverge from GMT, by about one minute every 60 to 90 years, or by an hour every 600 years, and there would need to be "leap minutes" a couple of times a century to bring the two in line.

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