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Time expert Philippe Richard on why scientists are changing how we keep time

NPR | By Scott Simon

Published October 24, 2026 at 7:42 AM EDT

Scientists have voted to change how the world keeps time, but most people won't even notice. NPR's Scott Simon talks to Philippe Richard, director of Switzerland's Federal Institute of Metrology.

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weekend edition saturday science

Scott Simon

Scott Simon is the host of Weekend Edition Saturday and is one of the hosts of NPR's morning news podcast Up First.

See stories by Scott Simon