Flight departure is usually refered to as the time when the plane or flight leaves. For example, if the plane left at 4:30 in the afternoon, the flight departure time would be 4:30pm.
According to Aruba Tourism Authority's website and Delta Airlines Flight Schedules, the daily direct flight to Oranjestad, Aruba's capital, departs from Atlanta, Georgia's capital, at 9:55 a.m....
it arrives when you say "sauerkraut" after saying "gobbler fish", then you have to say "pepperoni ague". Then at approximately 3:00AM you'll be arriving at the Daytona 500 race of 2009.