Definitions for leap second
leap sec·ond

Princeton's WordNetRate this definition:0.0 / 0 votes

1. leap secondnoun

   a second (as measured by an atomic clock) added to or subtracted from Greenwich Mean Time in order to compensate for slowing in the Earth's rotation

WiktionaryRate this definition:0.0 / 0 votes

1. leap secondnoun

   A second of time added to the year occasionally to compensate for variation in the rate of Earth's rotation relative to the absolute standards of time.

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1. leap second

   A leap second is an adjustment of one second added to our timekeeping system, Coordinated Universal Time (UTC), in order to align it with the Earth's actual rate of rotation. This practice helps to ensure that astronomical time and atomic time remain as closely aligned as possible, as imprecisions like the Earth's irregularly slowing rotation can cause slight inaccuracies.

WikidataRate this definition:0.0 / 0 votes

1. Leap second

   A leap second is a one-second adjustment that is occasionally applied to Coordinated Universal Time in order to keep its time of day close to the mean solar time. The most recent leap second was inserted on June 30, 2012 at 23:59:60 UTC. The UTC time standard, which is widely used for international timekeeping and as the reference for civil time in most countries, uses the international system definition of the second, based on atomic clocks. Like most time standards, UTC defines a grouping of seconds into minutes, hours, days, months, and years. However, the duration of one mean solar day is slightly longer than 24 hours. Therefore, if the UTC day were defined as precisely 86400 SI seconds, the UTC time-of-day would slowly drift apart from that of solar-based standards, such as Greenwich Mean Time and its successor UT1. The purpose of a leap second is to compensate for this drift, by occasionally scheduling some UTC days with 86401 or 86399 SI seconds. Specifically, a positive leap second is inserted between second 23:59:59 of a chosen UTC calendar date and second 00:00:00 of the following date. This extra second is displayed on UTC clocks as 23:59:60. On clocks that display local time tied to UTC, the leap second may be inserted at the end of some other hour, depending on the local time zone.

Matched Categories

1. • Second

Anagrams for leap second »

1. pole dances

How to pronounce leap second?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say leap second in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of leap second in Chaldean Numerology is: 8

2. Pythagorean Numerology

   The numerical value of leap second in Pythagorean Numerology is: 4

Examples of leap second in a Sentence

1. Dennis McCarthy:

   Our day-to-day existence doesn't even recognize that millisecond, but if these things add up, then it could change the rate at which we insert a leap second.

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=leap second
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Leap_Second
3. ^ ChatGPT
   https://chat.openai.com
4. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=leap second