CurseForge · Minecraft mod
Real Time Mod
Set's the world time to be the same as the computer time of the host and some other features.
Quick answer
Which Real Time Mod release should I use?
Real Time Mod RTM 2.12.0 | NeoForge 1.21.8 targets 1.21.1 with NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is Real Time Mod required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Real Time Mod RTM 2.12.0 | NeoForge 1.21.8 need?
RTM 2.12.0 | NeoForge 1.21.8. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Real Time Mod without breaking your instance.
Built for Real Time Mod RTM 2.12.0 | NeoForge 1.21.8. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use RTM 2.12.0 | NeoForge 1.21.8. It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside RTM 2.12.0 | NeoForge 1.21.8. It opens that exact file at the source.
About this project
What does Real Time Mod add?

About The Mod
RealTimeMod syncs your in-game time with your computer’s real-world clock—bringing a new layer of realism to your gameplay. But it doesn’t stop there! The mod now adds dynamic temperature, weather forecasting, and moon phase adjustments to enhance your survival experience. It’s highly customizable, lightweight, and easy to use, giving you full control over how immersive your world feels.

Features
- Customizable features
- Calendar item and block.
- Game time matches computer time.
- Seven day forecast
- Emissive temperature system.
- Serene Season support
- Season support
- Per player format support, set the time, temperature and weather icons.
- Hemisphere support.
- Moon phase duration support.
- Regional difficulty support.
- Game rules for easy customizability.
- Enchantments, Potions, and attributes for temperature fortitude.
- Cooler, Heater and Thermostat blocks.
- Well documented wiki

Official Mod Sites
Our GitHub has the official wiki and documentation for the mod updated to the latest version!

Credits
Huge thanks to Maple for the time and work on the textures and assets for the mod.
- Artist - MapleSyrupBoy

Made With
Below is the list of software we used to make the mod.
- Aseprite
- MCreator
- Notepad ++
- Paint Dot Net

Localization
If there is a problem with localization please let us know on our issue tracker.
- English: US_EN
- Arabic: AR_SA
- Dutch: NL_NL
- French: FR_FR
- German: DE_DE
- Portuguese: PT_PT
- Spanish: ES_ES
FAQ
Q: Can I use this in my mod pack?
A: Yes mod packs are fine please link to the curse forge page through.
Q: The mod lags a lot why?
A: The mod requires a fair bit of memory, and CPU power to run. It's not designed for lower grade computers.
Q: The time does not match the current time why?
A: This could be of one of two reasons, first Minecraft shifts the time over by 6 hours the mod takes this into account already but if your looking at the ticks this would be the reason. The other reason could be if your playing on a server, the server time could be hosted elsewhere which the computer time would be a different time. We have a game rule that can offset this time in that case.
Q: Can you add support for X mod?
A: Most features if not all features should work with all mods automatically without adding support. We will leave it up to other mods to add support as most things are data driven using tags.
Q: Can you add X feature?
A: If you share your suggestion on our discussions page on GitHub we may add it in the future.
Q: Is the mod laggy because of MCreator?
A: No, this is due to having to run much of the system on tick updates which requires more memory to do. MCreator does not have any responsibility over this directly.
Q: Can I repost this mod?
A: No, it's all rights reserved, we don't consent to this.
Q: Will you support NeoForge X.X.X?
A: This depends what MCreator ports to mod creators have no control but we do plan on porting this mod.
Q: Will you add support for Forge X.X.X?
A: No, forge is a dying platform, most mods do support NeoForge these days and MCreator dropped support a few updates ago so we won't support this in future versions.
Project description from CurseForge.
Pick your setup
Real Time Mod by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.8
1 loader build1.21.4
1 loader build1.21.1
1 loader build1.20.4
1 loader build1.20.1
1 loader build1.19.4
1 loader build1.19.2
1 loader build1.18.2
1 loader build1.17.1
1 loader build1.16.5
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Real Time Mod versions and loaders
RTM 2.12.0 | NeoForge 1.21.8
real_time_mod-2.12.0-neoforge-1.21.8.jar
27 Aug 2026
RTM 2.11.0 | NeoForge 1.21.1
real_time_mod-2.11.0-neoforge-1.21.1.jar
27 Aug 2026
RTM 2.10.0 | NeoForge 1.21.1
real_time_mod-2.10.0-neoforge-1.21.1.jar
20 Aug 2026
RTM 2.9.0 | NeoForge 1.21.8
real_time_mod-2.9.0-neoforge-1.21.8.jar
20 Aug 2026
RTM 2.8.0 | NeoForge 1.21.1
Real_Time_Mod-2.8.0-NeoForge-1.21.1.jar
18 Aug 2026
RTM 2.7.0 | NeoForge 1.21.8
Real_Time_Mod-2.7.0-NeoForge-1.21.8.jar
18 Aug 2026
RTM 2.6.0 | NeoForge 1.21.8
Real_Time_Mod-2.6.0-NeoForge-1.21.8.jar
4 Mar 2026
RTM 2.5.0 | NeoForge 1.21.4
Real_Time_Mod-2.5.0-NeoForge-1.21.4.jar
4 Mar 2026
RTM 2.4.0 | NeoForge 1.21.1
Real_Time_Mod-2.4.0-NeoGorge-1.21.1.jar
4 Mar 2026
RTM 2.1.1 | NeoForge 1.21.1
Real_Time_Mod-2.1.1-NeoForge-1.21.1.jar
18 Dec 2025
RTM 2.3.2 | NeoForge 1.21.8
Real_Time_Mod-2.3.2-NeoForge-1.21.8.jar
6 Dec 2025
RTM 2.2.2 | NeoForge 1.21.4
Real_Time_Mod-2.2.2-NeoForge-1.21.4.jar
6 Dec 2025
Looking for an older file? The official CurseForge project page is in Resources.