{"id":454,"date":"2009-01-25T09:00:28","date_gmt":"2009-01-25T08:00:28","guid":{"rendered":"https:\/\/www.galsys.co.uk\/news\/?p=454"},"modified":"2018-05-09T09:57:53","modified_gmt":"2018-05-09T09:57:53","slug":"the-atomic-clock-and-the-network-time-server","status":"publish","type":"post","link":"https:\/\/www.galsys.co.uk\/news\/the-atomic-clock-and-the-network-time-server\/","title":{"rendered":"The Atomic Clock and the Network Time Server"},"content":{"rendered":"<p>The <a href=\"https:\/\/www.galsys.co.uk\/atomic-clock\/\">atomic clock<\/a> is the culmination of mankind\u2019s obsession of telling accurate time. Before the atomic clock and the nanosecond accuracy they, employ time scales were based on the celestial bodies.<\/p>\n<p>However, thanks to the development of the atomic clock it has now been realised that even the Earth in its rotation is not as accurate a measure of time as the <a href=\"https:\/\/www.galleon.eu.com\/atomic-clock.html\">atomic clock<\/a> as it loses or gains a fraction of a second each day.<\/p>\n<p>Because of the need to have a timescale based somewhat on the Earth\u2019s rotation (astronomy and farming being two reasons) a timescale that is kept by atomic clocks but adjusted for any slowing (or acceleration) in the Earth\u2019s spin. This timescale is known as <a href=\"https:\/\/en.wikipedia.org\/wiki\/Coordinated_Universal_Time\">UTC<\/a> (Coordinated Universal Time) as employed across the globe ensuring commerce and trade utilise the same time.<\/p>\n<p>Computer networks use <a href=\"https:\/\/www.galsys.co.uk\/categories\/network-time-server.html\">network time servers <\/a>to synchronise to UTC time. Many people refer to these time server devices as atomic clocks but that is inaccurate. Atomic clocks are extremely expensive and highly sensitive pieces of equipment and are only usually to be found in universities or national physics laboratories.<\/p>\n<p>Fortunately national physics laboratories like <a href=\"https:\/\/www.nist.gov\">NIST<\/a> (National Institute for Standards and Time \u2013 USA) and <a href=\"https:\/\/www.npl.co.uk\">NPL<\/a> (National Physical Laboratory \u2013 UK) broadcast the time signal from their atomic clocks. Alternatively the GPS network is another good source of accurate time as each GPS satellite has onboard its own <a href=\"https:\/\/www.atomicclockrugbymsf.co.uk\/\">atomic clock<\/a>.<\/p>\n<p>The<a href=\"https:\/\/www.atomic-clock.galleon.eu.com\/time-servers\/network-time-server.html\"> network time server <\/a>receives the time from an atomic clock and distributes it using a protocol such as <a href=\"https:\/\/ntp.org\">NTP<\/a> (Network Time Protocol) ensuring the computer network is synchronised to the same time.<\/p>\n<p>Because <a href=\"https:\/\/www.galsys.co.uk\/ \">network time servers <\/a>are controlled by atomic clocks they can keep incredibly accurate time; not losing a second in hundreds if not thousands of years. This ensures that the computer network is both secure and unsusceptible to timing errors as all machines will have the exact same time.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The atomic clock is the culmination of mankind\u2019s obsession of telling accurate time. Before the atomic clock and the nanosecond accuracy they, employ time scales were based on the celestial bodies. However, thanks to the development of the atomic clock it has now been realised that even the Earth in its rotation is not as&hellip;<\/p>\n<p><a class=\"btn btn-primary\" href=\"https:\/\/www.galsys.co.uk\/news\/the-atomic-clock-and-the-network-time-server\/\">Continue reading <i class=\"fas fa-arrow-right\"><\/i><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,5,10,12,13,1],"tags":[19,20,207,22,23,25,26,27,28,204,29,30,34,35],"class_list":["post-454","post","type-post","status-publish","format-standard","hentry","category-atomic-clocks","category-chronology","category-quantum-physics","category-time-server","category-time-synchronisation","category-uncategorized","tag-gps-ntp-server","tag-gps-ntp-time-server","tag-gps-time-server","tag-linux-ntp","tag-linux-time-server","tag-network-time-server","tag-ntp-clock","tag-ntp-gps-server","tag-ntp-gps-time-server","tag-ntp-server-2","tag-ntp-servers","tag-ntp-time-server","tag-windows-ntp-server","tag-windows-server-2008"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>The Atomic Clock and the Network Time Server - Galleon Systems<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.galsys.co.uk\/news\/the-atomic-clock-and-the-network-time-server\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The Atomic Clock and the Network Time Server - Galleon Systems\" \/>\n<meta property=\"og:description\" content=\"The atomic clock is the culmination of mankind\u2019s obsession of telling accurate time. Before the atomic clock and the nanosecond accuracy they, employ time scales were based on the celestial bodies. However, thanks to the development of the atomic clock it has now been realised that even the Earth in its rotation is not as&hellip;Continue reading\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.galsys.co.uk\/news\/the-atomic-clock-and-the-network-time-server\/\" \/>\n<meta property=\"og:site_name\" content=\"Galleon Systems\" \/>\n<meta property=\"article:published_time\" content=\"2009-01-25T08:00:28+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2018-05-09T09:57:53+00:00\" \/>\n<meta name=\"author\" content=\"Richard N Williams\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@galleonsystems\" \/>\n<meta name=\"twitter:site\" content=\"@GalleonSystems\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Richard N Williams\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.galsys.co.uk\\\/news\\\/the-atomic-clock-and-the-network-time-server\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.galsys.co.uk\\\/news\\\/the-atomic-clock-and-the-network-time-server\\\/\"},\"author\":{\"name\":\"Richard N Williams\",\"@id\":\"https:\\\/\\\/www.galsys.co.uk\\\/news\\\/#\\\/schema\\\/person\\\/38013a1dcb0021026d59957e276aa3cd\"},\"headline\":\"The Atomic Clock and the Network Time Server\",\"datePublished\":\"2009-01-25T08:00:28+00:00\",\"dateModified\":\"2018-05-09T09:57:53+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.galsys.co.uk\\\/news\\\/the-atomic-clock-and-the-network-time-server\\\/\"},\"wordCount\":328,\"keywords\":[\"gps ntp server\",\"gps ntp time server\",\"gps time server\",\"linux ntp\",\"linux time server\",\"network time server\",\"ntp clock\",\"ntp gps server\",\"ntp gps time server\",\"ntp server\",\"ntp servers\",\"ntp time server\",\"windows ntp server\",\"windows server 2008\"],\"articleSection\":[\"atomic clocks\",\"chronology\",\"quantum physics\",\"time server\",\"Time Synchronisation\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.galsys.co.uk\\\/news\\\/the-atomic-clock-and-the-network-time-server\\\/\",\"url\":\"https:\\\/\\\/www.galsys.co.uk\\\/news\\\/the-atomic-clock-and-the-network-time-server\\\/\",\"name\":\"The Atomic Clock and the Network Time Server - 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