The invasion started with airborne landings at 3:30 AM, and the seaborne invasion started at 6:30 AM and took 19 hours. Operation Overlord was planned for months, and was scheduled for June 5, but was delayed due to bad weather. In the next several months the Allies fought in France and took various useful ports such as Caen, and later Paris. After less than a year, the Allies entered Nazi Germany, and Germany surrendered.