欧博体育官网 atomic clocks set their time automatically by synchronizing to a radio signal called WWVB that the National Institute of Standards and Technology (NIST) broadcasts continuously from Fort Collins, 科罗拉多州.
的优势?
正常工作时, radio-controlled clocks always display the correct time without requiring manual adjustment, offering peace of mind and convenience during Daylight Saving Time changes, as the hour will update automatically.