```c++

// To lessen verbosity, try defining the following convenience aliases in a header:

using SystemClock_t = std::chrono::system_clock;

using SteadyClock_t = std::chrono::steady_clock;

using HighClock_t = std::chrono::high_resolution_clock;

using SharedDelay_t = std::atomic<SystemClock_t::duration>;

using Minutes_t = std::chrono::minutes;

using Seconds_t = std::chrono::seconds;

using MilliSecs_t = std::chrono::milliseconds;

using MicroSecs_t = std::chrono::microseconds;

using NanoSecs_t = std::chrono::nanoseconds;

using DoubleSecs_t = std::chrono::duration<double>;

using FloatingMilliSecs_t = std::chrono::duration<double, std::milli>;

using FloatingMicroSecs_t = std::chrono::duration<double, std::micro>;

```