std::chrono::zoned_time (3) - Linux Man Pages

std::chrono::zoned_time: std::chrono::zoned_time


std::chrono::zoned_time - std::chrono::zoned_time


Defined in header <chrono>
template <
class Duration, (since C++20)
class TimeZonePtr = const std::chrono::time_zone*
> class zoned_time;

The class zoned_time represents a logical pairing of a time zone and a std::chrono::time_point whose resolution is Duration.
An invariant of zoned_time is that it always refers to a valid time zone and represents an existing and unambiguous time point in that time zone. Consistent with this invariant, zoned_time has no move constructor or move assignment operator; attempts to move a zoned_time will perform a copy.
The program is ill-formed if Duration is not a specialization of std::chrono::duration.
The template parameter TimeZonePtr allows users to supply their own time zone pointer types and further customize the behavior of zoned_time via std::chrono::zoned_traits. Custom time zone types need not support all the operations supported by std::chrono::time_zone, only those used by the functions actually called on the zoned_time.
TimeZonePtr must be MoveConstructible. Move-only TimeZonePtrs are allowed but difficult to use, as the zoned_time will be immovable and it is not possible to access the stored TimeZonePtr.

Member types

Member type Definition
duration std::common_type_t<Duration, std::chrono::seconds>

Member functions

                    constructs a zoned_time
constructor (public member function)
                    assigns value to a zoned_time
operator= (public member function)
                    obtains a copy of the time zone pointer
get_time_zone (public member function)
                    obtains the stored time point as a local_time
operator_local_time (public member function)
                    obtains the stored time point as a sys_time
operator_sys_time (public member function)
                    obtain information about the time zone at the stored time point
get_info (public member function)

Nonmember functions

           compares two zoned_time objects
operator== (function template)
           outputs a zoned_time into a stream
operator<< (function template)
           outputs a zoned_time into a stream according to the provided format
to_stream (function template)