It took 42 days for the French sailor Francois Gabart to sail solo around the world.
Any individual who is engaged in sailing for either recreational or professional purposes, such person can be regarded as a sailor. A sail generally happens through seas and oceans.
One of the French sailor took a period of one and a half month to sail across the world in such a short period and thereby created a world record for the same.
Hence, it is to be concluded that French sailor took 42 days to sail solo around the world.
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