Overnight aboard ship?

We are booked on the March 16, 2017 Liberty out of Galveston (just to Cozumel and back) and when I looked at my cruise documents it said *overnight aboard ship next to Cozumel but it has our arrival at 7:30 and our departure at 4:30. So is that probably just a mistake? I'd love to get to stay overnight but thinking that's not the case...I did get excited for a minute there lol!

IS there a concert that night?

Not unless it's a new addition? That would be awesome [emoji2]