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Physical Measurement Laboratory

Time and Frequency Division

News and Updates

Displaying 126 - 150 of 152

Enjoy New Year's Eve a Second Longer!

You can toot your New Year's horn an extra second this year, say physicists at the National Institute of Standards and Technology (NIST). Along with the rest of
Kitching with an atomic clock

NIST Unveils Chip-Scale Atomic Clock

The heart of a minuscule atomic clock—believed to be 100 times smaller than any other atomic clock—has been demonstrated by scientists at the Commerce
illustration of the NIST-F1 Cesium Fountain Clock

NIST-F1 Cesium Fountain Clock

There's nothing like the joy of receiving a precision timepiece as a holiday gift. Thanks to the Commerce Department's National Institute of Standards and

Another Leap Second is at Hand

Though your summer this year may seem all too short, it will actually be the longest one since 1994. There will be exactly one extra second, a little bonus

Upgrade To Improve Time Signal's Coverage

The Commerce Department's National Institute of Standards and Technology has announced plans to upgrade its radio station WWVB, which broadcasts standard time