text: 
  #pragma once
  
  #include <units/isq/si/time.h>
  
  // named qtime due to conflict with time_t time(time_t*)
  namespace q_time {
  
  template<typename Rep = double>
  using s = units::isq::si::time<units::isq::si::second, Rep>;
  
  template<typename Rep = double>
  using ms = units::isq::si::time<units::isq::si::millisecond, Rep>;
  
  template<typename Rep = double>
  using min = units::isq::si::time<units::isq::si::minute, Rep>;
  
  template<typename Rep = double>
  using h = units::isq::si::time<units::isq::si::hour, Rep>;
  
  }  // namespace time
  