1ST_DAY_OF_WEEK (System Preference)#
For calendar driven screens such as DTEDC, this preference indicates the day of the week that the calendar starts on. Values allowed are:
| 1 | Sunday (Default) |
| 2 | Monday |
| 3 | Tuesday |
| 4 | Wednesday |
| 5 | Thursday |
| 6 | Friday |
| 7 | Saturday |
This preference can be set by site (IMST) or role (IMRO)
