Unit conversion definitions

#define QH_NS_PER_US 

#define QH_US_PER_MS 

#define QH_NS_PER_MS 

#define QH_MS_PER_S 

#define QH_US_PER_S 

#define QH_NS_PER_S 

#define QH_S_PER_MIN 

#define QH_MS_PER_MIN 

#define QH_US_PER_MIN 

#define QH_NS_PER_MIN 

#define QH_MINS_PER_HOUR 

#define QH_S_PER_HOUR 

#define QH_MS_PER_HOUR 

#define QH_US_PER_HOUR 

#define QH_NS_PER_HOUR 

#define QH_HOURS_PER_DAY 

#define QH_MINS_PER_DAY 

#define QH_S_PER_DAY 

#define QH_MS_PER_DAY 

#define QH_US_PER_DAY 

#define QH_NS_PER_DAY 

#define QH_DAYS_PER_WEEK 

#define QH_HOURS_PER_WEEK 

#define QH_MINS_PER_WEEK 

#define QH_S_PER_WEEK 

#define QH_MS_PER_WEEK 

#define QH_US_PER_WEEK 

#define QH_NS_PER_WEEK