ModsFinder

Real Time Sync

by Super__

Real Time Sync makes the Minecraft day and night cycle follow the real clock on a server, with timezone support for each world.

FabricServer-side onlyMIT License1.21.10

What it does

Once the server runs the mod, the in-game clock tracks the real world time, so dawn and dusk arrive at the hours they would outside. Timezone support lets the server owner choose which zone the clock follows. It is a server mod: clients need nothing to join a server that runs it, and it works with Fabric Loader 0.18.4 or later and requires Fabric API.

Configuration is handled through commands rather than a file the server owner has to edit by hand. The mod also changes spawning, with Zombie Piglins and Nether portal spawns disabled by default. Real Time Sync is built for Minecraft 1.21.10 only, and its 1.0.2 file dates from 2026-02-28. It is released under the MIT License but is not open source.

Key features

  1. Real-time day and night

    The day and night cycle follows the real world clock, so in-game time matches the hour where the server is.

  2. Timezone selection

    A timezone setting decides which local time the server clock uses, for servers that serve one region.

  3. Command-based setup

    Sync options are changed with commands, so the server owner can adjust settings while the server is running.

  4. Piglin and portal spawning off

    Zombie Piglin spawning and Nether portal generation are disabled by default, and the server owner can turn them back on.

Compatibility

Latest build for each game version and loader.

1.21.101.0.2
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Use cases

Servers that mirror local time

A community server in one country can show dawn and dusk at the same hours its players see outside.

Who it’s for: Server owners who want the in-game day to follow the real clock, especially for a server in a single time zone.

How it compares

Full comparison

Real Time Mod is a Fabric mod for 1.18.2 that runs on client and server and is open source under the MIT License. Sync System Time is also Fabric and open source under the MIT License, but it targets 1.21.8 and only the server must run it, with the client optional. MapSync is a Fabric mod for 1.21.11 that is client-side only, so it does not touch the server clock.

ModLoadersGame versionsEnvironmentUpdated
Real Time SyncFabric1.21.10Server-side only2026-02-28
Real Time ModFabric1.18.2Client and server2022-07-01
Sync System TimeFabric1.21.8Server required, client optional2025-10-01
MapSyncFabric1.21.11Client-side only2026-03-07

Questions

Does Real Time Sync need Fabric API?

Yes. Fabric API is required, and the mod also needs Fabric Loader 0.18.4 or later.

Does a player need the mod to join a server that runs it?

No. Server owners install it, and players connect with no copy of their own.

Which Minecraft versions does Real Time Sync support?

The mod is built for 1.21.10 only. Its latest Fabric file is 1.0.2, published on 2026-02-28.

What the author says

A Fabric mod that synchronizes Minecraft server time with real world time.
Super__, on the Modrinth page

Official listing

Owner
Super__
Published
2026-02-26
Updated on Modrinth
2026-02-28
Facts verified
2026-10-15
Open on ModrinthCompare