Clock

Here, we briefly discuss the different types of clocks in C++.

The clock consists of a starting point and a tick. So you can get the current time with the method now.

  • std::chrono::system_clock:
    System time, which you can synchronize with the external clock.

  • std::chrono::steady_clock:
    Clock, which can not be adjusted.

  • std::chrono::high_resolution_clock:
    System time with the greatest accuracy.

std::chrono::system_clock will refer typically to the 1.1.1970. You can not adjust std::steady_clock forward or backward in opposite to two other clocks. The methods to_time_t and from_time_t can be used to convert between std::chrono::system_clock and std::time_t objects.

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