| q.h. | quaque hora; Every Hour; 매시간 |
|---|---|
| q2h | every two hours [Lat. quaque secunda hora] |
| q3h | every three hours [Lat. quaque tertia hora] |
| q4h | every four hours [Lat. quaque quarta hora] |
| Q8H | every 8 hours |
| qoh | every other hour [Lat. quaque altera hora] |
| qqh | every four hours [Lat. quaque quarta hora] |