class template

std::chrono::time_point

template <class Clock, class Duration = typename Clock::duration>
  class time_point;

Time point

A time_point object expresses a point in time relative to a clock's epoch.

Internally, the object stores an object of a duration type, and uses the Clock type as a reference for its epoch.

Template parameters

Clock: A clock class, such as system_clock, steady_clock, high_resolution_clock or a custom clock class.
Duration: A duration type.

Member types

The following aliases are member types of time_point. They are widely used as parameter and return types by member functions:

member type	definition	notes
`clock`	The first template parameter (`Clock`)	The clock class (either system_clock, steady_clock, high_resolution_clock or a custom clock class).
`duration`	The second template parameter (`Duration`)	The duration type used to represent the time point.
`rep`	`duration::rep`	Type returned by duration::count.
`period`	`duration::period`	The ratio type that represents the length of a period in seconds.