File:Clock-pendulum.gif · Wikimedia Commons · See Wikimedia Commons
A second is a unit of time that results from dividing a day into progressively smaller units—first into 24 hours, then into 60 minutes, and finally into 60 seconds each, giving 86,400 seconds per day. This measurement system, originally based on Earth's rotation, remains the foundation of the Universal Time 1 (UT1) timekeeping system used today.
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Key facts
- Unit.name
- second
- Unit.image
- File:Clock-pendulum.gif
- Unit.caption
- A pendulum-governed escapement of a clock, ticking every second
- Unit.standard
- SI
- Unit.quantity
- time
- Unit.symbol
- s
via Wikipedia infobox
Wikidata facts
- Subclass of
- time interval
- Part of
- MKS system of units
Show 13 more facts
- subdivision of this unit
- tierce
- exact match
- www.w3.org/TR/owl-time/#time:unitSecond
- short name
- sek.
- conversion to standard unit
- 9192631770
- Commons category
- Second
- conversion to SI unit
- 1
- Commons gallery
- Second
- Wikidata time precision
- 14
- different from
- Sekunda
- on focus list of Wikimedia project
- Wikipedia:Vital articles/Level/4
- numeric value
- 0.000000031688764640818492441649983866417932843660808436937693280217
- Wikidata SPARQL query equivalent
- wd:Q11574 p:P2370/psn:P2370 [wikibase:quantityAmount ?source; wikibase:quantityUnit ?base]. ?item p:P2370/psn:P2370 [wikibase:quantityAmount ?target; wikibase:quantityUnit ?base]. BIND(?source / ?target as ?value)
- unit symbol
- s
Sources (7)
via Wikidata · CC0
Article · Svenska
Sekund, med beteckningen s, emellanåt förkortat sek, är SI-enheten för tid. Den är en av sju internationellt erkända grundenheter. Sekunder kan mätas med hjälp av klocka. Sekunden är det minsta vardagliga måttet för tid, där minuter, timmar, dygn, veckor, månader och år är andra enheter i dagligt bruk. En föråldrad uppdelning av en sekund är 60 tertier.
Abstract from DBpedia / Wikipedia · CC BY-SA
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