Comic Market 109 Returns to a Three-Day Format, First Time in Years

Article

Winter Comiket is getting an extra day this year — official confirmation from the event's own organizing committee.

The Announcement

The Comic Market Preparatory Committee (コミックマーケット準備会) posted the official announcement on its social account: Comic Market 109 will run December 29–31, 2026, a three-day event, at Tokyo Big Sight. East Halls 4-6 will not be available, due to ongoing renovation work.

Why Three Days Now

Japanese coverage of the announcement points to rising circle application numbers as a key driver of the expanded format, alongside the reduced hall space from the venue's own construction work — more circles wanting in, with less floor space per day to fit them, makes a third day a practical solution.

What Comes Next

Circle application details were not included in this initial date announcement and are expected to follow in a separate update from the organizing committee.

What To Know

Comiket expanding back to three days means more circles can participate and more attendees have a realistic chance of getting into the halls they want, at the cost of needing an extra day of stamina — for a convention this large, a format change like this genuinely reshapes how fans plan their whole trip.

Tokyo Big Sight's own ongoing large-scale renovation (which has already taken East Halls 4-6 out of use for several recent Comiket events) is a real, physical constraint organizers have had to plan around for multiple years running — so a schedule change like this one is as much about adapting to construction as it is about demand.

What Fans Are Saying

• "Three days again, finally! My feet are already tired just thinking about it."
• "Makes sense given how many circles keep applying every year."
• "Hope the missing halls don't make it too cramped."

Original Japanese

• 「3日間、やっと戻ってきた」
• 「サークル数が増えてるなら納得」
• 「ホールが減ってる分、混雑が心配」

Easy Japanese

冬のコミックマーケット（コミケ）が、2026年12月29日から31日まで、3日間開催されることが決まりました。