One Piece Day 2024 Date. One piece day '24 is a grand event to celebrate the start of the epic pirate adventure on july 22, 1997. One piece day 2024 will be held on aug.

The official one piece day ’24 event will take place at makuhari messe in chiba on 10 and 11 august 2024. One piece day returns in 2024 with its biggest lineup to date, featuring manga, anime, movies, games and merchandise.