std::chrono::zoned_time<Duration,TimeZonePtr>::get_time_zone
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                    < cpp | chrono | zoned time
                    
                                                            
                    | TimeZonePtr get_time_zone() const; | (since C++20) | |
Retrieves the stored time zone pointer.
Return value
A copy of the stored time zone pointer.
Notes
There's no way to access the time zone pointer when TimeZonePtr is a move-only type.