
Modrinth · Minecraft mod
TimeScaleLib
A library mod for Minecraft that introduces time scaling (bullet time) functionality.
Quick answer
Which TimeScaleLib release should I use?
TimeScaleLib 1.2.9 targets 1.20.1 with Forge, NeoForge. Installation on the client is optional. Installation on the dedicated server is optional. No extra mods listed for this file.
Where it goes
Is TimeScaleLib required on the client, server, or both?
Installation on the client is optional. Installation on the dedicated server is optional.
The source marks this as usable on both the client and server.
What else does TimeScaleLib 1.2.9 need?
1.2.9. 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.
This file does not list any required or optional mods.
Before you install it
Add TimeScaleLib without breaking your instance.
Built for TimeScaleLib 1.2.9. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 1.2.9. It targets 1.20.1 with Forge, 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
Installation on the client is optional. Installation on the dedicated server is optional.
- 04
Pick the file you checked
Use the “Get this file” button beside 1.2.9. It opens that exact file at the source.
About this project
What does TimeScaleLib add?
TimeScaleLib
TimeScaleLib is a library mod that adds advanced time scaling (bullet time) mechanics to Minecraft.
Unlike the vanilla /tick rate command, this mod only slows down non-player entities and the game world's time flow, allowing for more natural slow-motion effects while keeping player control responsive.
Features
- Independent time scaling system
- Smooth recovery transition support
- Rendering-compatible PartialTick API
- Support for applying time scaling to the movement of specified entities
- Built-in time scaling commands
Compatibility
TimeScaleLib includes compatibility support for several combat and gameplay systems.
Currently compatible with:
Known incompatible mods:
- None
Commands
Apply Time Scale
/timescale apply <scale> [<duration>] [<transition>] [include <target>]
Applies a time scale effect to the game world.
scale: Time scale multiplier (0.0 ~ 1.0)duration: Optional total duration in ticks. Default is-1; when set to-1, the time scale effect lasts indefinitelytransition: Optional recovery transition duration in ticks. Default is20; when set to-1, the transition is applied throughout the entire duration of the time scale effecttarget: Optional entity whose physical movement will also be affected by time scaling (typically the player). Default isnull
Example:
/timescale apply 0.1 120 20
Runs at 10% time speed for 120 ticks and smoothly restores normal speed during the final 20 ticks.
Remove Time Scale
/timescale remove
Removes all active time scale effects.
API
Currently provides:
- Apply time scale
- Query current time scale
- Remove all time scales
- Access layered PartialTick values
Currently used to provide bullet time effects for ParCoolSkill.
Project description from Modrinth.
Pick your setup
TimeScaleLib by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.1
1 loader build1.20.1
2 loader buildsCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
TimeScaleLib versions and loaders
1.2.9
timescalelib-1.2.9-all.jar
17 Aug 2026
1.2.8
timescalelib-1.2.8-all.jar
9 Aug 2026
1.2.8
timescalelib-1.2.8.jar
9 Aug 2026
1.2.8
timescalelib-1.2.8.jar
9 Aug 2026
1.2.7
timescalelib-1.2.7-all.jar
7 Aug 2026
1.2.6
timescalelib-1.2.6-all.jar
7 Aug 2026
1.2.6
timescalelib-1.2.6.jar
7 Aug 2026
1.2.6
timescalelib-1.2.6.jar
7 Aug 2026
1.2.5
timescalelib-1.2.5-all.jar
6 Aug 2026
1.2.4
timescalelib-1.2.4-all.jar
4 Aug 2026
1.2.4
timescalelib-1.2.4.jar
4 Aug 2026
1.2.3
timescalelib-1.2.3-all.jar
1 Aug 2026
Looking for an older file? The official Modrinth project page is in Resources.