Seconds to Gigaseconds conversion
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Second is the International System of Units (SI) base unit of time. Since 1967 the second has been 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.
Gigasecond is a prefixed form used to indicate multiples of second.
1 gigasecond = 109 second