Subscribe free to our newsletters via your
. 24/7 Space News .

This year to be longer by one second
by Staff Writers
Gaithersburg, Md. (UPI) Dec 24, 2008

disclaimer: image is for illustration purposes only

This year will be longer than usual -- by one second, the U.S. Institute of Standards and Technology said Wednesday.

The earth is sufficiently out of sync that a leap second has been scheduled for 7 p.m. U.S. Eastern Standard Time on Dec. 31, said the institute, noting those interested in watching it happen should go to before midnight, London time, and click on their time zone.

A total of 24 leap seconds have been added since 1972, the last being in December 2005, because the earth is slowing and does not rotate exactly once every 24 hours, or 86,400 seconds, the Institute said.

The discrepancy went unnoticed until highly accurate atomic clocks were developed in the late 1960s. It was decided then, by international agreement, that operators of atomic clocks around the world would adjust the time of day by adding one second to the world's official time when needed.


Related Links
Understanding Time and Space

Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks DiggDigg RedditReddit GoogleGoogle

Leap Second Will Be Added To Clocks On NYE
Washington DC (SPX) Dec 09, 2008
On December 31, 2008 a "leap second" will be added to the world's clocks at 23 hours, 59 minutes and 59 seconds Coordinated Universal Time (UTC). This corresponds to 6:59:59 pm Eastern Standard Time, when the extra second will be inserted at the U.S. Naval Observatory's Master Clock Facility in Washington, DC. This marks the 24th leap second to be added to UTC, a uniform time-scale kept by ... read more

Raytheon's Chandrayaan-1 Sensor Successfully Activated

Moon's Polar Craters Could Be The Place To Find Lunar Ice

Altair lunar lander design plans sought

Papua New Guinea tidal waves displace 75,000: UN

Mine life may show how Martian life exists

Ferric Oxides And Sulfates In Equatorial Regions Of Mars

Rock Varnish: A Promising Habitat For Martian Bacteria

Possible Explanation For Migration Of Volcanic Activity On Mars

US gives green light for first commercial spaceport

NASA finds clues to Mars mysteries

ISS Crew Marks 40th Anniversary Of First Human Moon Trip

China's First Multi-Functional Experiment System For Space Tribology

China Launches Third Fengyun-2 Series Weather Satellite

China To Launch New Remote Sensing Satellite

HK, Macao Scientists Expected To Participate In China's Aerospace Project

China's Future Astronauts Will Be Scientists

NASA Awards Multi Billion Dollar ISS Supply Contracts

ISS Astronauts Successfully Complete Spacewalk

A Station Celebration

NASA Signs Modification To Contract With Russian Space Agency

Arianespace To Launch Egyptian Satellite Nilesat 201

Boeing To Launch Fourth EO Satellite For Italy

Ariane 5 Achieves Another Successful Mission

Arianespace's Sixth Ariane 5 Of 2008 Completes Assembly

NASA's Kepler Spacecraft Ready To Ship To Florida

Planets Form In The Eye Of A Storm

Planets Living On The Edge

Watching For Wobbles

Solutions Created For Two NASA Missions

New polymer coatings prevent corrosion

Eliminating Space Debris - The Quest Continues

HP offering aims at penny-pinching IT departments

The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement