Sync System Time

1. 01

   Real-time gamerule

   A new gamerule switches the world clock to follow the real time of the system.

2. 02

   Matching clock times

   An in-game time such as 8am lines up with 8am on the computer, and the world stays on that schedule.

3. 03

   Synchronized day counter

   The day counter progresses in step with the real calendar instead of a fixed day length.

Real Time Sync is a Fabric mod for 1.21.10 that runs on the server alone and is not open source, though it is released under the MIT License. Survival Time is a Fabric mod for 1.21.11 that runs on the client alone and is released under the MIT License, so it works differently from a server-side sync.

Sync System Time is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 17,695 mods support Minecraft 1.21.8.