
DatapacksJava
How Long?
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.

Are you also lazy to scroll through stats to check how long you've spent in your world/server? Now you can make it easier - just hold a clock and see your total play-time nicely formatted!
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.9, 1.21.10
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.
Verified by MCModsHub
- Downloads as HowLong1.21.9-1.21.10.zip
- Download size: 11 KB
- Download link checked 9 Sept 2026 — working
These come from our own check of the pack file, not from the source page.