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What does LS stand for?

LS stands for Leap Second

This definition appears frequently and is found in the following Acronym Finder categories:

  • Information technology (IT) and computers

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Other Resources:
We have 94 other meanings of LS in our Acronym Attic

Samples in periodicals archive:

Other countries, though, say losing the leap second would cause a mess of its own, making noon slide gradually earlier and earlier.
In order for our civil time (UTC based on TAI) to keep "in step" with the changing earth rotational speed, UT1 leap seconds are added to the year from time to time to compensate for this slowing down.
Thanks to the Earth's erratic rotation, the countdown to 2009 lasted a moment longer as British physicists and official timekeepers around the world inserted a leap second to bring the most accurate atomic clocks in line with the astronomical day.