
Day Length
Change how long a Minecraft day lasts and sync it with real-world time.
Screenshots

About this Mod
Day Length
Day Length gives you absolute control over Minecraft's time progression. Whether you want a strictly realistic 24-hour cycle or custom-speed days for your unique playstyle, this mod handles it with precision and smoothness.
🚀 Features
- Custom Day Duration: Set the day-night cycle to any length you want (e.g., 40 minutes for double length, or 48 hours for extreme realism).
- Real-Time Synchronization: Sync Minecraft time with your system clock or a specific UTC offset.
- Smooth Transitions: No more sun/moon jitter. Time progresses smoothly tick by tick.
- Vanilla Sleep Support: Players can still sleep to skip the night normally (available when not synced with real-time).
- Easy Configuration: Direct access to configuration from the in-game mod list.
🛠️ Configuration
Day Length uses a standard configuration system. You can find the config file at:.minecraft/config/daylength-common.toml (or similar depending on your loader/version).
In-Game Access
- Go to the Mods menu in Minecraft.
- Select Day Length.
- Click the Config button.
- The configuration file will open directly in your system's default text editor.
Settings
customDayLength: Set the length of the day in minutes (Vanilla is 20).realTimeSync: Toggle synchronization with real-world time.manualUtcOffset: Adjust time if using real-time sync with a specific timezone.smoothTimeTransition: Enables gradual adjustments when syncing time.
💾 Installation
- Download: Get the correct JAR for your version and loader from GitHub, CurseForge, or Modrinth.
- Mod Loader: Ensure you have a compatible mod loader installed.
- Deploy: Place the file into your
.minecraft/modsfolder. - Launch: Start the game and enjoy your custom time!
🤝 Support & Links
- Discord: Join our community for support and updates at discord.gg/gNajXYku5z.
- Issues: Found a bug? Open an issue on GitHub.
- Repository: yigit-guven/Day-Length
- Wiki: Detailed documentation
Licensed under the GNU GPLv3.
Available Versions
How to Install Day Length on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.6).
Install Mod
Open the mod browser in the dashboard and search for "Day Length". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.6, 1.21.4, 1.21.1 (+11 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Day Length server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.6). You can switch loaders with one click in the panel.
Is Day Length compatible with fabric and forge and neoforge?
Day Length officially supports fabric, forge, neoforge for Minecraft 1.21.6, 1.21.4, 1.21.1. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Day Length – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Day Length consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Install Day Length with just one click on your server.