Decade (dec)

The decade is a unit of time, used for historical periods, demographic trends, technology generations, and climate data. Its symbol is dec.

From

dec

-min

1 decade equals

Minutes	5,259,600 min
Hours	87,660 h
Seconds	315,576,000 s
Days	3,652.5 d

About the decade

The decade comes from Greek "dekas" meaning a group of ten. It has been used as a historical period marker since at least the 17th century.

In everyday use the decade appears in historical periods, demographic trends, technology generations, and climate data. As a point of reference: the first iPhone was released over a decade ago in 2007.

Convert decades to

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