›› Measurement unit: seconds

Full name: second

Plural form: seconds

Symbol: s

Alternate spelling: sec

Category type: time

Scale factor: 1


›› SI unit: second

The SI base unit for time is the second.
1 second is equal to 1 seconds.


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›› Definition: Second

The second (symbol s) is a unit for time, and one of seven SI base units. It is defined as the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom at zero kelvins.


›› Sample conversions: seconds

seconds to Gaussian year
seconds to day
seconds to synodic month
seconds to Gregorian year
seconds to sidereal year
seconds to Julian month
seconds to millisecond
seconds to draconic month
seconds to week
seconds to fortnight