Day Length

Day Length

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

by
6.4K Downloads
fabricforgeneoforgegame-mechanicsmanagementutility
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Screenshots

Day Length banner

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

  1. Go to the Mods menu in Minecraft.
  2. Select Day Length.
  3. Click the Config button.
  4. 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

  1. Download: Get the correct JAR for your version and loader from GitHub, CurseForge, or Modrinth.
  2. Mod Loader: Ensure you have a compatible mod loader installed.
  3. Deploy: Place the file into your .minecraft/mods folder.
  4. Launch: Start the game and enjoy your custom time!

🤝 Support & Links

Licensed under the GNU GPLv3.

Available Versions

Day Length 3.0.2release
MC 1.20.1forge
May 31, 2026
Day Length 3.0.1release
MC 1.21.1fabric
March 3, 2026
Day Length 3.0.1release
MC 1.20.1fabric
March 3, 2026
Day Length 3.0.1release
MC 1.20.1forge
March 3, 2026
Day Length 3.0.0release
MC 1.20.1forge
March 1, 2026

How to Install Day Length on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.6).

3

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

fabricforgeneoforge

Minecraft Versions

1.21.6, 1.21.4, 1.21.1 (+11 more)

Server-side

Required

Recommended 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.

Rent Modded Server

Install Day Length with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
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NVMe SSD Storage
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Details

License
GNU General Public License v3.0 only
Server-side
Required

Supported Versions

1.21.61.21.41.21.11.20.61.20.51.20.41.20.31.20.21.20.11.19.4+4 more