acDs1FarEndDayNumber 1.3.6.1.4.1.2785.2.3.4.5.1.4

A number between 1 and 31, where 1 is current 24 hour day interval in progress, 2 is the most recently completed 24 hour day interval and 31 is the 24 hour day interval completed 29 days prior to interval 2.