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second (Q11574)

SI unit of time, defined as 9 192 631 770 periods of the ground-state hyperfine transitions of caesium-133
  • sec
  • s
  • seconds
Language Label Description Also known as
English
second
SI unit of time, defined as 9 192 631 770 periods of the ground-state hyperfine transitions of caesium-133
  • sec
  • s
  • seconds

Statements

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Clock-pendulum.gif
353 × 669; 200 KB
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9,192,631,770 hertz
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1 second
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0.00000000003170979198377 millennium
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0.0000000003170979198377 century
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0.000000003170979198377 decade
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0.00000003168808781403 Julian year
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0.00000003168873850681 Gregorian year
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0.00000003168876462184 tropical year
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0.00000003170979198377 year
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0.0000003802537330419 month
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0.0000008267195767196 fortnight
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0.000001653439153439 week
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0.00001157407407407 day
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0.0002777777777778 hour
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0.01666666666667 minute
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1,000 millisecond
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1,000,000 microsecond
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1,000,000,000 nanosecond
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Second
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Second
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"Seconds"
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Identifiers