Day Length - Customizable Minecraft Time System

Overview

Day Length is a Minecraft mod that allows players and server owners to customize the in-game day-night cycle and optionally synchronize it with real-world time. This mod is ideal for realism-focused gameplay, roleplay servers, and anyone who wants greater control over the passage of time in their Minecraft world.

⚠ Requires AnCore Lib to function properly.

📖 Wiki Page | 🐛 Report Issues | 💬 Discord

Features

🔹 Customizable Day Length

By default, a full Minecraft day lasts 24000 ticks (20 minutes). With Day Length, you can modify this duration to be shorter or longer. This is controlled using a new gamerule:

/gamerule customDayLength [minutes]

• Example: /gamerule customDayLength 1440 makes a full Minecraft day last 24 real hours.
• The value is set in real-world minutes, allowing full control over time progression.

⏳ Real-World Time Synchronization

For a more immersive experience, Day Length can sync in-game time with real-world time. When enabled, Minecraft time automatically adjusts based on the server's system clock:

/gamerule realTimeSync true

• Example: If the server operates in UTC+2 and the local time is 14:00, then in-game time will also be 14:00.
• Useful for long-term survival servers, city-building experiences and realism-focused gameplay.

🌅 Smooth Time Transition

Instead of abruptly setting the time forward, Day Length dynamically adjusts tick speed to smoothly transition between time changes:

• Prevents the sun and moon from jumping when settings are modified.
• Ensures that lighting and environmental changes occur naturally.

🔧 Commands & Configuration

• Gamerules:
  • customDayLength – Sets the duration of a full Minecraft day in real-world minutes.
  • realTimeSync – Enables or disables real-time synchronization.
• Commands:
  • /time set 0 still works but respects the custom day length setting.

📥 Requirements

🔗 Dependency: AnCore Lib

This mod requires AnCore Lib to function correctly. Please ensure you have it installed before using Day Length.

❓ Need Help?

• Wiki: Click here for full documentation.
• Issues: Found a bug? Report it here.
• Community: Join our Discord server to chat with others and get support.