In a new study, researchers carried out the most extensive coordinated comparison of optical clocks to date by operating clocks and the links connecting them simultaneously across six countries.

Researchers in China have created one of the most precise clocks ever made – so precise, in fact, that it could soon lead scientists to officially redefine the second. Known as a strontium optical ...

Chinese scientists have engineered a clock so accurate it could lead to a redefinition of the second and an ultraprecise global time standard. The new optical clock is so accurate that it loses or ...

A research team at VTT MIKES has set a new record in optical-clock absolute frequency measurements using a strontium single-ion clock with exceptionally low uncertainty and high uptime. The official ...

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New Jersey high school basketball is under the clock. Garden State lacrosse will have to wait. Last week the state's governing board, the New Jersey Interscholastic Athletic Association voted on ...