Obtains a {@code Duration} representing a number of seconds. !(p) The nanosecond _in second field is set to zero.
@param seconds the number of seconds, positive or negative @return a {@code Duration}, not null
See Implementation
Obtains a {@code Duration} representing a number of seconds. !(p) The nanosecond _in second field is set to zero.
@param seconds the number of seconds, positive or negative @return a {@code Duration}, not null