| Name | Data Type | Definition | |
|---|---|---|---|
| MON | string | Monday. | |
| TUE | string | Tuesday. | |
| WED | string | Wednesday. | |
| THU | string | Thursday. | |
| FRI | string | Friday. | |
| SAT | string | Saturday. | |
| SUN | string | Sunday. | |
| WORK_DAY | string | Working Day. This value indicates any day which is neither a Legal Holiday nor a weekly non-working day. | |
| BEF_WORK_DAY | string | The day preceding a working day. | |
| AFT_WORK_DAY | string | The day after a working day. | |
| HOL | string | Legal Holiday. The value does not include the weekly non-working days (for example, Saturday and Sunday in most European States). | |
| BEF_HOL | string | The day preceding a legal holiday. | |
| AFT_HOL | string | The day after a legal holiday. | |
| ANY | string | Any day. | |
| BUSY_FRI | string | Formally declared as 'Busy Friday' by the authority responsible for aeronautical information provision in the area concerned, in order to activate special traffic management arrangements. | |
| OTHER | string | Other |