{"id":927,"date":"2009-06-30T08:23:24","date_gmt":"2009-06-30T08:23:24","guid":{"rendered":"https:\/\/www.galsys.co.uk\/news\/?p=927"},"modified":"2018-05-08T14:59:22","modified_gmt":"2018-05-08T14:59:22","slug":"dealing-with-time-computers-synchronisation-and-timestamps","status":"publish","type":"post","link":"https:\/\/www.galsys.co.uk\/news\/dealing-with-time-computers-synchronisation-and-timestamps\/","title":{"rendered":"Dealing With Time computers synchronisation and timestamps"},"content":{"rendered":"

Time is important for the smooth running of our day to day lives. Everything we do is either governed by or restrained because of time. Yet time is even more essential for computer systems as it is the only point of reference a computer has to distinguish between events and processes.<\/p>\n

Everything a computer does is logged by the processor with what process was done and exactly when it was carried out. As computers can process hundreds if not thousands of transactions a second so the time stamp is vital for establishing the order of events.<\/p>\n

Computers do not read and use the time in the same format that we do. A computer timestamp<\/a> takes the form of a single digit that counts the number of seconds from a set point in time. In most systems this is known as the \u2018prime epoch\u2019 and is set from 00:00:00 UTC on January 1, 1970. So a timestamp for the date 23 June 2009 the timestamp would read: 1246277483 as this is the number of seconds from the prime epoch.<\/p>\n

Computer timestamps are sent across networks and the internet, for instance every time an email is sent it is accompanied by a timestamp. When the email is replied to this too comes with a timestamp. Yet, when neither computer is synchronized the replied email could arrive back with an earlier code and this can cause untold confusion for a computer as according to its logs the email will have arrived back before the original was sent.<\/p>\n

For this reason computer networks are synchronized to the global timescale UTC (Coordinated Universal Time<\/a>). UTC is kept true by a constellation of atomic clocks which means that and computer network synchronised to a UTC source will be highly accurate.<\/p>\n

Time synchronization <\/a>on computers is dealt with by the protocol NTP (Network Time Protocol). Special dedicated NTP servers<\/a> are available the receive a secure time code from either the GPS network<\/a> or from specialist radio transmissions broadcast by national physical laboratories and then synchronize entire networks to the single time source.<\/p>\n","protected":false},"excerpt":{"rendered":"

Time is important for the smooth running of our day to day lives. Everything we do is either governed by or restrained because of time. Yet time is even more essential for computer systems as it is the only point of reference a computer has to distinguish between events and processes. Everything a computer does…<\/p>\n

Continue reading <\/i><\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,74,8,13,14],"tags":[199,18,25,206,33],"class_list":["post-927","post","type-post","status-publish","format-standard","hentry","category-advanced-ntp","category-ntp-applications","category-ntp-configuration","category-time-synchronisation","category-timing-source","tag-advanced-ntp","tag-gps-clock","tag-network-time-server","tag-time-synchronisation","tag-utc"],"yoast_head":"\nDealing With Time computers synchronisation and timestamps - 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\/dealing-with-time-computers-synchronisation-and-timestamps\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Dealing With Time computers synchronisation and timestamps - Galleon Systems\" \/>\n<meta property=\"og:description\" content=\"Time is important for the smooth running of our day to day lives. Everything we do is either governed by or restrained because of time. Yet time is even more essential for computer systems as it is the only point of reference a computer has to distinguish between events and processes. Everything a computer does…Continue reading\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.galsys.co.uk\/news\/dealing-with-time-computers-synchronisation-and-timestamps\/\" \/>\n<meta property=\"og:site_name\" content=\"Galleon Systems\" \/>\n<meta property=\"article:published_time\" content=\"2009-06-30T08:23:24+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2018-05-08T14:59:22+00:00\" \/>\n<meta name=\"author\" content=\"Stuart\" \/>\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=\"Stuart\" \/>\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\\\/dealing-with-time-computers-synchronisation-and-timestamps\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.galsys.co.uk\\\/news\\\/dealing-with-time-computers-synchronisation-and-timestamps\\\/\"},\"author\":{\"name\":\"Stuart\",\"@id\":\"https:\\\/\\\/www.galsys.co.uk\\\/news\\\/#\\\/schema\\\/person\\\/d0bc412239981453c0bcd039a511f32a\"},\"headline\":\"Dealing With Time computers synchronisation and timestamps\",\"datePublished\":\"2009-06-30T08:23:24+00:00\",\"dateModified\":\"2018-05-08T14:59:22+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.galsys.co.uk\\\/news\\\/dealing-with-time-computers-synchronisation-and-timestamps\\\/\"},\"wordCount\":346,\"keywords\":[\"advanced NTP\",\"gps clock\",\"network time server\",\"Time Synchronisation\",\"UTC\"],\"articleSection\":[\"advanced NTP\",\"NTP applications\",\"NTP configuration\",\"Time Synchronisation\",\"timing source\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.galsys.co.uk\\\/news\\\/dealing-with-time-computers-synchronisation-and-timestamps\\\/\",\"url\":\"https:\\\/\\\/www.galsys.co.uk\\\/news\\\/dealing-with-time-computers-synchronisation-and-timestamps\\\/\",\"name\":\"Dealing With Time computers synchronisation and timestamps - Galleon Systems\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.galsys.co.uk\\\/news\\\/#website\"},\"datePublished\":\"2009-06-30T08:23:24+00:00\",\"dateModified\":\"2018-05-08T14:59:22+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/www.galsys.co.uk\\\/news\\\/#\\\/schema\\\/person\\\/d0bc412239981453c0bcd039a511f32a\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.galsys.co.uk\\\/news\\\/dealing-with-time-computers-synchronisation-and-timestamps\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.galsys.co.uk\\\/news\\\/dealing-with-time-computers-synchronisation-and-timestamps\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.galsys.co.uk\\\/news\\\/dealing-with-time-computers-synchronisation-and-timestamps\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.galsys.co.uk\\\/news\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Dealing With Time computers synchronisation and timestamps\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.galsys.co.uk\\\/news\\\/#website\",\"url\":\"https:\\\/\\\/www.galsys.co.uk\\\/news\\\/\",\"name\":\"Galleon Systems\",\"description\":\"Sales: 0121 608 7230\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.galsys.co.uk\\\/news\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.galsys.co.uk\\\/news\\\/#\\\/schema\\\/person\\\/d0bc412239981453c0bcd039a511f32a\",\"name\":\"Stuart\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/fe4598bc8745112a8106520efd95cbf602b09ebe2ae1081d18f9c529f4707d72?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/fe4598bc8745112a8106520efd95cbf602b09ebe2ae1081d18f9c529f4707d72?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/fe4598bc8745112a8106520efd95cbf602b09ebe2ae1081d18f9c529f4707d72?s=96&d=mm&r=g\",\"caption\":\"Stuart\"},\"sameAs\":[\"https:\\\/\\\/www.galsys.co.uk\"],\"url\":\"https:\\\/\\\/www.galsys.co.uk\\\/news\\\/author\\\/stuart\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Dealing With Time computers synchronisation and timestamps - Galleon Systems","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.galsys.co.uk\/news\/dealing-with-time-computers-synchronisation-and-timestamps\/","og_locale":"en_US","og_type":"article","og_title":"Dealing With Time computers synchronisation and timestamps - Galleon Systems","og_description":"Time is important for the smooth running of our day to day lives. Everything we do is either governed by or restrained because of time. Yet time is even more essential for computer systems as it is the only point of reference a computer has to distinguish between events and processes. Everything a computer does…Continue reading","og_url":"https:\/\/www.galsys.co.uk\/news\/dealing-with-time-computers-synchronisation-and-timestamps\/","og_site_name":"Galleon Systems","article_published_time":"2009-06-30T08:23:24+00:00","article_modified_time":"2018-05-08T14:59:22+00:00","author":"Stuart","twitter_card":"summary_large_image","twitter_creator":"@GalleonSystems","twitter_site":"@GalleonSystems","twitter_misc":{"Written by":"Stuart","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.galsys.co.uk\/news\/dealing-with-time-computers-synchronisation-and-timestamps\/#article","isPartOf":{"@id":"https:\/\/www.galsys.co.uk\/news\/dealing-with-time-computers-synchronisation-and-timestamps\/"},"author":{"name":"Stuart","@id":"https:\/\/www.galsys.co.uk\/news\/#\/schema\/person\/d0bc412239981453c0bcd039a511f32a"},"headline":"Dealing With Time computers synchronisation and timestamps","datePublished":"2009-06-30T08:23:24+00:00","dateModified":"2018-05-08T14:59:22+00:00","mainEntityOfPage":{"@id":"https:\/\/www.galsys.co.uk\/news\/dealing-with-time-computers-synchronisation-and-timestamps\/"},"wordCount":346,"keywords":["advanced NTP","gps clock","network time server","Time Synchronisation","UTC"],"articleSection":["advanced NTP","NTP applications","NTP configuration","Time Synchronisation","timing source"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/www.galsys.co.uk\/news\/dealing-with-time-computers-synchronisation-and-timestamps\/","url":"https:\/\/www.galsys.co.uk\/news\/dealing-with-time-computers-synchronisation-and-timestamps\/","name":"Dealing With Time computers synchronisation and timestamps - Galleon Systems","isPartOf":{"@id":"https:\/\/www.galsys.co.uk\/news\/#website"},"datePublished":"2009-06-30T08:23:24+00:00","dateModified":"2018-05-08T14:59:22+00:00","author":{"@id":"https:\/\/www.galsys.co.uk\/news\/#\/schema\/person\/d0bc412239981453c0bcd039a511f32a"},"breadcrumb":{"@id":"https:\/\/www.galsys.co.uk\/news\/dealing-with-time-computers-synchronisation-and-timestamps\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.galsys.co.uk\/news\/dealing-with-time-computers-synchronisation-and-timestamps\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.galsys.co.uk\/news\/dealing-with-time-computers-synchronisation-and-timestamps\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.galsys.co.uk\/news\/"},{"@type":"ListItem","position":2,"name":"Dealing With Time computers synchronisation and timestamps"}]},{"@type":"WebSite","@id":"https:\/\/www.galsys.co.uk\/news\/#website","url":"https:\/\/www.galsys.co.uk\/news\/","name":"Galleon Systems","description":"Sales: 0121 608 7230","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.galsys.co.uk\/news\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/www.galsys.co.uk\/news\/#\/schema\/person\/d0bc412239981453c0bcd039a511f32a","name":"Stuart","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/fe4598bc8745112a8106520efd95cbf602b09ebe2ae1081d18f9c529f4707d72?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/fe4598bc8745112a8106520efd95cbf602b09ebe2ae1081d18f9c529f4707d72?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/fe4598bc8745112a8106520efd95cbf602b09ebe2ae1081d18f9c529f4707d72?s=96&d=mm&r=g","caption":"Stuart"},"sameAs":["https:\/\/www.galsys.co.uk"],"url":"https:\/\/www.galsys.co.uk\/news\/author\/stuart\/"}]}},"_links":{"self":[{"href":"https:\/\/www.galsys.co.uk\/news\/wp-json\/wp\/v2\/posts\/927","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.galsys.co.uk\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.galsys.co.uk\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.galsys.co.uk\/news\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.galsys.co.uk\/news\/wp-json\/wp\/v2\/comments?post=927"}],"version-history":[{"count":1,"href":"https:\/\/www.galsys.co.uk\/news\/wp-json\/wp\/v2\/posts\/927\/revisions"}],"predecessor-version":[{"id":1961,"href":"https:\/\/www.galsys.co.uk\/news\/wp-json\/wp\/v2\/posts\/927\/revisions\/1961"}],"wp:attachment":[{"href":"https:\/\/www.galsys.co.uk\/news\/wp-json\/wp\/v2\/media?parent=927"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.galsys.co.uk\/news\/wp-json\/wp\/v2\/categories?post=927"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.galsys.co.uk\/news\/wp-json\/wp\/v2\/tags?post=927"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}