template<class Duration>
nonexistent_local_time(const local_time<Duration>& tp, const local_info& i);
2016-03-13 02:30:00 is in a gap between 2016-03-13 02:00:00 EST and 2016-03-13 03:00:00 EDT which are both equivalent to 2016-03-13 07:00:00 UTC— end example]