Typical excursion times in Med?

[JordanCA]

For the Princess shore excursions on their Med cruises (places such as Corfu, Rhodes, Mykonos, Santorini, etc.) when do the 3-4 hour tours typically depart? (Assuming, of course, there's a "typical" schedule.) Are they early AM, or do they start later in the day? I did a search of the port of call boards and didn't see this. Thanks!