What is the 12/24 Maintenance?
The 12/24 (Wednesday) update has been announced in advance through the official Chaos Zero Nightmare announcement page, where the team outlines that the game will be temporarily unavailable while the update is carried out. This type of scheduled maintenance is part of the regular live‑service operation of the game, allowing the developers to push large updates safely without risking data corruption or mid‑battle disconnections for players.
The announcement emphasizes that the maintenance is specifically tied to the December 24 update patch, which includes various in‑game changes and content that will only take effect after the servers reopen. Players are encouraged to plan their playtime around this window, as all modes—story, battles, co‑op, and events—will be inaccessible during maintenance.
Chaos Zero Nightmare Maintenance Time
The 12/24 (Wed) update maintenance for Chaos Zero Nightmare is scheduled to run from 01:00 to 06:00 (UTC), creating a five‑hour window where servers will be completely offline. Players in other regions should convert this time to their local timezone to avoid attempting to log in while the game is unavailable.
For the entire 01:00–06:00 (UTC) maintenance period, logins, matchmaking, and all in‑game actions will be disabled, and any existing sessions are closed before the start time to protect player data. The team also notes that this schedule may be extended if unexpected technical issues appear during deployment, in which case updated times are shared through official channels.
Server Status and Player Impact
During the maintenance period, Chaos Zero Nightmare’s servers are set to an offline state, preventing new logins and disconnecting any existing sessions prior to the start of the window to avoid data inconsistency. This means players cannot enter battles, claim rewards, or participate in events until the maintenance is fully completed and the servers are brought back online.
Because of this, the development team typically advises players to avoid starting long stages or critical content—such as high‑difficulty runs or time‑limited missions—just before the maintenance begins, as any progress made close to the start time may not be saved. Many community posts also recommend finishing daily missions, clearing energy, and using time‑sensitive resources ahead of the shutdown to minimize lost opportunities.
What Happens After Maintenance Ends?
Once the 12/24 maintenance is completed, the servers are gradually reopened and players can log back into Chaos Zero Nightmare. At that point, the new update is fully active, and features such as newly added content, character banners, and balance changes become available in‑game.
After reconnecting, players are often prompted to download an additional in‑game patch or data update, which may slightly extend the time before they can start playing even though the servers are technically live again. It is generally recommended to use a stable network connection during this first login so that the post‑maintenance data download completes without interruption.
Tips for Players During this Maintenance
To make the most of the 12/24 maintenance period, many experienced players suggest a few practical steps. First, finish any critical activities—like event stages close to their deadlines or resource‑intensive runs—well before the start of the 01:00 (UTC) maintenance time to ensure that all rewards are correctly saved.
Second, check the official announcement and social pages shortly before and after the planned 01:00–06:00 (UTC) window, in case the maintenance is extended or completed earlier than expected. Third, once the servers are back, review the patch notes or update notice so that any changes to characters, systems, or events introduced with the December 24 update are clearly understood before jumping back into high‑stakes content.
Disclaimer
This information is based on official announcements from the Chaos Zero Nightmare development team. Maintenance schedules may change or be extended due to technical issues. Players should always check official social media channels and in-game notices for real-time updates and final server status confirmations.
