How many seasons are there in One Piece?

The 1030+ One Piece episodes that have been aired so far are divided into 20 seasons with 20 different story arcs.

If one were to watch every episode of One Piece, minus the filler episodes, how many hours would it take? - Quora

Netflix is Rebooting the 'One Piece' anime -- While the Original is Still Airing

How to watch One Piece in order? All episodes and movies - Meristation

How to Watch ONE PIECE Faster Without Filler Episodes - Nerdist

How long is One Piece: World Seeker?

How long are the One Piece anime and manga?

How many One Piece movies are there? - Dexerto

One Piece Season 1: How Many Episodes & When Do New Episodes Come Out?

Long Long, One Piece Wiki