Gets the number of nanoseconds, later along the time-line, from the start
of the second.
!(p)
The nanosecond-of-second value measures the total number of nanoseconds from
the second returned by {@link #getEpochSecond}.
@return the nanoseconds within the second, always positive, never exceeds 999,999,999
Gets the number of nanoseconds, later along the time-line, from the start of the second. !(p) The nanosecond-of-second value measures the total number of nanoseconds from the second returned by {@link #getEpochSecond}.
@return the nanoseconds within the second, always positive, never exceeds 999,999,999