Home›Atomic clocks›NIST-F1 銫原子鐘🌐中文EnglishDeutschFrançaisItalianoNederlands中文EntityQ1090233· pop 5· linked from 12 articlesNIST-F1 銫原子鐘thumb|250px|right|NIST-F1, source of the official time of the United StatesWikidata factsImageNist-f1.jpgShow 1 more factCommons categoryNIST-F1 atomic clockSources (1)wikidata.orgvia Wikidata · CC0Available in 4 languagesItalianoCatalanSlovakvia Wikidata sitelinks · CC0Connectionsatomic clockEntityInternational Bureau of Weights and MeasuresEntityCategoriesAtomic clocksNational Institute of Standards and Technology