Don’t blink or you might miss the leap second on Tuesday

This Tuesday, June 30, 2015 photo shows the second hand of a clock at the one second mark in New York. On Tuesday, international timekeepers are tacking a second to the clock to compensate for a slightly slower Earth rotation. The leap second means clocks will move from 11:59:59 p.m. universal time to the odd reading of 11:59:60 p.m. before it hits midnight. (AP Photo/Patrick Sison)

Tuesday lasts a wee bit longer — by a second.

International timekeepers are tacking a second to the clock to compensate for a slightly slower Earth rotation.

While a leap second is hardly enough time to change daily life, it has been known to affect some computer systems in the past.

There have been calls to abandon the practice of periodically adding an extra second, which has kept computers synchronized with the Earth day since 1972. The last time was in 2012.

A decision by a United Nations agency that deals with telecommunications issues isn’t expected until later this year at the earliest.

For now, Tuesday’s leap second means clocks will move from 23:59:59 to the odd reading of 23:59:60 before it hits midnight, universal time. That’s 8 p.m. EDT.

 

Copyright 2015 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

 

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