How Different Cultures Understand Time

How Different Cultures Understand Time – Business Insider.

Interesting discussion of different cultures views on time.

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New atomic clock could be world’s most precise

New atomic clock could be world’s most precise – CNN.com.

The rate of ticking of this timepiece — known informally (and awkwardly) as the ytterbium optical lattice clock — does not change by more than one part in 10^18, Ludlow said. In other words, if there is any variation in how a second is measured, it would be in about the 18th decimal place.

That is an error rate of less than a second every five hundred million years.