| Code | Description | Version | 
| A  | Ante (before) | added v2.4 | 
| BID  | twice a day at institution-specified times | added v2.4 | 
| C  | service is provided continuously between start time and stop time | added v2.4 | 
| D  | Cibus Diurnus (lunch) | added v2.4 | 
| I  | Inter | added v2.4 | 
| M  | Cibus Matutinus (breakfast) | added v2.4 | 
| Meal Related Timings  | <timing>C ("cum")<meal> | added v2.8.2 | 
| Once  | one time only. | added v2.4 | 
| P  | Post (after) | added v2.4 | 
| PRN  | given as needed | added v2.4 | 
| PRNxxx  | where xxx is some frequency code | added v2.4 | 
| Q<integer>D  | every <integer> days | added v2.4 | 
| Q<integer>H  | every <integer> hours | added v2.4 | 
| Q<integer>J<day#>  | repeats on a particular day of the week, | added v2.4 | 
| Q<integer>L  | every <integer> months (Lunar cycle) | added v2.4 | 
| Q<integer>M  | every <integer> minutes | added v2.4 | 
| Q<integer>S  | every <integer> seconds | added v2.4 | 
| Q<integer>W  | every <integer> weeks | added v2.4 | 
| QAM  | in the morning at institution-specified time | added v2.4 | 
| QHS  | every day before the hour of sleep | added v2.4 | 
| QID  | four times a day at institution-specified times | added v2.4 | 
| QOD  | every other day | added v2.4 | 
| QPM  | in the evening at institution-specified time | added v2.4 | 
| QSHIFT  | during each of three eight-hour shifts at institution-specified times | added v2.4 | 
| TID  | three times a day at institution-specified times | added v2.4 | 
| U <spec>  | for future use, where <spec> is an interval specification as defined by the UNIX cron specification. | added v2.4 | 
| V  | Cibus Vespertinus (dinner) | added v2.4 | 
| xID  | "X" times per day at institution-specified times, where X is a numeral 5 or greater. | added v2.4 |