We are sailing for the first time with Celebrity on the Edge to Alaska in June. My question is about check in time. My reservation says that check in will be available on April 23, but what time does it open up? Is it at midnight, 9am, or what? Also, whatever time it does open up, I'm guessing that would be EST since that is where Celebrity is based? I'm just curious, because I would like to get the earliest embarkation time that I can. Thanks in advance.