When is FastPass booking allowed?

[Firsttime101]

I have a 4 day park package with a choice of 1 park each day. My 30 day period starts tomorrow for booking Fastpass. My question is if I’m not going to a park on the first day can I still book Fastpass starting tomorrow? Or do I have to wait until Tuesday morning since tomorrow would be 31 days away.

 

[ENJDisneyFan]

I assume you’re staying offsite. You will be able to book your FP 30 days in advance of each park day, one day at a time. So tomorrow you will be able to book FP for 2/26. Then Tuesday you’ll be able to book for 2/27...and so on.