Typical boarding time - Uniworld in Amsterdam

[bbwex]

We are on the European Serenade trip on June 11th going from Amsterdam to Vienna. We need to make flight arrangements into Amsterdam for that morning (we are just coming from Barcelona). It is still too early to expect paperwork from Uniworld, but can someone give me the approximate timing for embarkation. The boat is staying in Amsterdam overnight, so there is no issue of missing the boat.