(klÅt) n. 1. A thick, viscous, or coagulated mass or lump, as of blood. 2. A clump, mass, or lump, as of clay. 3. A compact group: a clot of trucks blocking the tunnel's entrance.
Bodies start to float once the gas from decomposition replaced the  water inside the lungs. It is effected by the depth and temperature  or the water. In warm water it can bâ¦e as soon as 1 to 2 days in 80  degree water, or as much as 14 to 20 days in freezing cold water.
It took me about 10 years to get over the fear of water. And then 3 days to learn swimming. I find that the biggest challenge for a beginner swimmer is not the technique but getting over the fear of water. But this can be done easily in a few days with the proper approach. And you don't even need a float to learn swimming.