Weekly Manga Release Schedule & Simulpub Calendar
Track exact day-by-day chapter release times for Weekly Shonen Jump, Kodansha Magazine, Young Jump, and Korean Webtoons with automatic timezone conversion.
Weekly Shonen Magazine (Kodansha)
Four Knights of the Apocalypse
SimulpubNakaba Suzuki's Seven Deadly Sins sequel
Understanding Japan's Publishing Calendar & Magazine Breaks
In the Japanese manga industry, physical magazines publish approximately 48 to 50 issues per calendar year. Four times a year, all major publishers (Shueisha, Kodansha, Shogakukan, Hakusensha) close for national holidays, resulting in scheduled publication breaks:
| Holiday Break Window | Timing in the Year | Affected Magazines | How Issues are Numbered |
|---|---|---|---|
| New Year Holiday Break | Late December to Early January | All Japanese Print & Digital Magazines | Combined Issues (e.g. Issue #4/5) |
| Golden Week Holiday | First week of May | Shonen Jump, Magazine, Sunday, Young Jump | Combined Issues (e.g. Issue #22/23) |
| Obon Festival Holiday | Mid-August | All Weekly & Monthly Serials | Combined Issues (e.g. Issue #36/37) |
| Christmas / Winter Holiday | Mid-to-Late December | All Serials before Year-End Push | Combined Issues (e.g. Issue #2/3) |
Frequently Asked Questions About Manga Releases
What time do Weekly Shonen Jump chapters release officially in English?
Weekly Shonen Jump chapters (One Piece, Jujutsu Kaisen, Chainsaw Man) release every Sunday at 15:00 UTC on Manga Plus and VIZ Media. In North America, this corresponds to 10:00 AM EST / 7:00 AM PST.
What is a "Simulpub" in manga publishing?
A simulpub (simultaneous publication) is the official release of translated manga chapters worldwide at the exact same hour the physical print magazine hits newsstands in Japan, eliminating scanlation translation delays.
Why are there no manga chapters during certain weeks of the year?
Japan observes national public holidays where physical print magazines take scheduled breaks. These include New Year holidays (late Dec / early Jan), Golden Week (early May), and Obon Festival (mid-August). During these weeks, double-issues are published beforehand.
What is the difference between an author hiatus and a magazine break?
A magazine break affects all serialized titles in that magazine (e.g., Weekly Shonen Jump takes a holiday). An author hiatus (such as Eiichiro Oda's scheduled 3-week creative breaks) is taken individually by the mangaka for health and research, while the rest of the magazine continues publishing.
Can I convert release times into my local timezone?
Yes. Use our dynamic Timezone Selector above to instantly convert all Japanese and UTC chapter release times into EST, PST, GMT, BST, JST, or PHT.
Where can I read newly dropped chapters on release day?
Visit authorized publishers directly, including Manga Plus by Shueisha, VIZ Media, Webtoon, and K Manga, as detailed in our MangaSee Alternatives directory.