If they preemptively put you on rest to give you 30hrs off and that changes your days of availability are you considered in the new bucket or the old bucket (as long as you are legal for both)

i.e. you have a stretch of 9 days of LC and on day 1 they call and give you rest on day 4 for 30hrs. Are you now in the 3 day bucket or should you still be considered in the 5 day bucket?