Obtains an instance from a local date-time using the preferred offset if possible.
@param localDateTime the local date-time, not null
@param zone the zone identifier, not null
@param preferredOffset the zone offset, null if no preference
@return the zoned date-time, not null
Obtains an instance from a local date-time using the preferred offset if possible.
@param localDateTime the local date-time, not null @param zone the zone identifier, not null @param preferredOffset the zone offset, null if no preference @return the zoned date-time, not null