Time Point
The time point std::chrono::time_point is defined by the starting point (epoch) and the additional time duration. The class template consists of the two components: clock and time duration. By default, the time duration is derived from the clock.
template<
class Clock,
class Duration= typename Clock::duration
>
class time_point;
The following four special time points depend on the clock:
- epoch: the starting point of the clock
- now: the current time
- min: the minimum time point that the clock can have
- max: the maximum time point that the clock can have
The accuracy of the minimum and maximum time point depends on the clock used: std::system::system_clock, std::chrono::steady_clock, or std::chrono::high_resolution_clock.
C++ gives no guarantee about the accuracy, the starting point or the valid time range of a clock. The starting point of std::chrono::system_clock is typically 1st January 1970, the...