How long did it take to capture mulberry floating harbors?

The capture of the mulberry floating harbors, specifically during the D-Day landings in World War II, was a rapid process. The first mulberry harbor was operational within about 10 days after the Normandy invasion began on June 6, 1944. The construction and assembly of these artificial harbors were crucial for the Allied forces to facilitate the rapid offloading of troops and supplies onto the beaches of France.