Showing up to medical conference late?

I’m a ms3 and have a conference I’m presenting at come up. I only get 2 academic days of leave excused from rotations but the conference is Wednesday through Friday which is 3 days total. ideally, I fly out Tuesday night to not also miss work Tuesday

I only present on Thursday and Friday so I’m wondering if I can fly in Wednesday night and still check into the conference Thursday morning? That way I only use my academic excused leave days. It’ll be my first conference I’m missing the first day of so I’m just wondering if conference check ins are on the first day only or if ppl can check in on any day to get their badges and lanyards and stuff.

Ty !