{"id":920,"date":"2008-12-16T10:37:53","date_gmt":"2008-12-16T10:37:53","guid":{"rendered":"https:\/\/www.galsys.co.uk\/news\/?p=920"},"modified":"2011-11-02T13:05:30","modified_gmt":"2011-11-02T13:05:30","slug":"2008-will-be-a-second-longer-leap-second-to-be-added-to-utc","status":"publish","type":"post","link":"https:\/\/www.galsys.co.uk\/news\/2008-will-be-a-second-longer-leap-second-to-be-added-to-utc\/","title":{"rendered":"2008 Will be a second longer Leap Second to be added to UTC"},"content":{"rendered":"

New Year\u2019s celebrations will have to wait another second this year as the International Earth Rotation and Reference Systems Service (IERS) have decided to 2008 is to have Leap Second added.<\/p>\n

IERS announced in Paris in July that a positive Leap Second was to be added to 2008, the first since Dec. 31, 2005. Leap Seconds were introduced to compensate for the unpredictability of the Earth\u2019s rotation and to keep UTC (Coordinated Universal Time) with GMT (Greenwich Meantime).<\/p>\n

The new extra second will be added on the last day of this year at 23 hours, 59 minutes and 59 seconds Coordinated Universal Time \u2014 6:59:59 pm Eastern Standard Time. 33 Leap Seconds have been added since 1972<\/p>\n

NTP server<\/a> systems controlling time synchronisation on computer networks are all governed by UTC (Coordinated Universal Time). When an additional second is added at the end of the year UTC will automatically be altered as the additional second. #<\/p>\n

Whether a NTP server <\/a>receives a time signal fro transmissions such as MSF, WWVB or DCF or from the GPS network the signal will automatically carry the Leap Second announcement.<\/p>\n

Notice of Leap Second from the International Earth Rotation and Reference Systems Service (IERS)<\/p>\n

SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE ET DES SYSTEMES DE REFERENCE<\/p>\n

SERVICE DE LA ROTATION TERRESTRE
\nOBSERVATOIRE DE PARIS
\n61, Av. de l’Observatoire 75014 PARIS (France)
\nTel.\u00a0\u00a0\u00a0\u00a0\u00a0 : 33 (0) 1 40 51 22 26
\nFAX\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 : 33 (0) 1 40 51 22 91
\ne-mail\u00a0\u00a0\u00a0 : services.iers@obspm.fr
\nhttps:\/\/hpiers.obspm.fr\/eop-pc<\/p>\n

Paris, 4 July 2008<\/p>\n

Bulletin C 36<\/p>\n

To authorities responsible for the measurement and distribution of time<\/p>\n

UTC TIME STEP
\non the 1st of January 2009<\/p>\n

A positive leap second will be introduced at the end of December 2008.
\nThe sequence of dates of the UTC second markers will be:<\/p>\n

2008 December 31,\u00a0\u00a0\u00a0\u00a0 23h 59m 59s
\n2008 December 31,\u00a0\u00a0\u00a0\u00a0 23h 59m 60s
\n2009 January\u00a0\u00a0 1,\u00a0\u00a0\u00a0\u00a0\u00a0 0h\u00a0 0m\u00a0 0s<\/p>\n

The difference between UTC and the International Atomic Time TAI is:<\/p>\n

from 2006 January 1, 0h UTC, to 2009 January 1\u00a0 0h UTC\u00a0 : UTC-TAI = – 33s
\nfrom 2009 January 1, 0h UTC, until further notice\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 : UTC-TAI = – 34s<\/p>\n

Leap seconds can be introduced in UTC at the end of the months of December<\/p>\n","protected":false},"excerpt":{"rendered":"

New Year\u2019s celebrations will have to wait another second this year as the International Earth Rotation and Reference Systems Service (IERS) have decided to 2008 is to have Leap Second added. IERS announced in Paris in July that a positive Leap Second was to be added to 2008, the first since Dec. 31, 2005. Leap…<\/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":[3,8,9,11,13,14],"tags":[19,20,207,126,25,68,26,27,28,204,29,30,205,34,35],"class_list":["post-920","post","type-post","status-publish","format-standard","hentry","category-advanced-ntp","category-ntp-configuration","category-ntp-server-2","category-radio","category-time-synchronisation","category-timing-source","tag-gps-ntp-server","tag-gps-ntp-time-server","tag-gps-time-server","tag-linu","tag-network-time-server","tag-ntp","tag-ntp-clock","tag-ntp-gps-server","tag-ntp-gps-time-server","tag-ntp-server-2","tag-ntp-servers","tag-ntp-time-server","tag-time-server","tag-windows-ntp-server","tag-windows-server-2008"],"yoast_head":"\n2008 Will be a second longer Leap Second to be added to UTC - 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\/2008-will-be-a-second-longer-leap-second-to-be-added-to-utc\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"2008 Will be a second longer Leap Second to be added to UTC - Galleon Systems\" \/>\n<meta property=\"og:description\" content=\"New Year\u2019s celebrations will have to wait another second this year as the International Earth Rotation and Reference Systems Service (IERS) have decided to 2008 is to have Leap Second added. IERS announced in Paris in July that a positive Leap Second was to be added to 2008, the first since Dec. 31, 2005. 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