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mod

Day Length

Change how long a Minecraft day lasts and sync it with real-world time.

client and servernewest supported 1.21.6UtilityAdventureGame MechanicsOptimization
Latest version
no release indexed
Minecraft
1.14.4 to 1.21.6
Java
Java 21+
Loaders
NeoForge, Forge, Fabric
Licence
GPL-3.0-only
Downloads
7.4k
Updated
2 mo ago
Available on
Modrinth

Minecraft versions

Every version Day Length declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.6NeoForge, Forge, Fabric21+declared17 Jun 2025
1.21.4Fabric, NeoForge, Forge21+declared3 Dec 2024
1.21.1Forge, NeoForge, Fabric21+declared8 Aug 2024
1.20.6Forge, NeoForge, Fabric21+declared29 Apr 2024
1.20.5Forge, NeoForge, Fabric21+declared23 Apr 2024
1.20.4Forge, NeoForge, Fabric17+declared7 Dec 2023
1.20.3Fabric, Forge, NeoForge17+declared4 Dec 2023
1.20.2NeoForge, Forge, Fabric17+declared20 Sept 2023
1.20.1Fabric, NeoForge, Forge17+declared12 Jun 2023
1.19.4Forge, NeoForge, Fabric17+declared14 Mar 2023
1.19.2NeoForge, Forge, Fabric17+declared5 Aug 2022
1.18.2NeoForge, Forge, Fabric17+declared28 Feb 2022
1.16.5Fabric, NeoForge, Forge8+declared14 Jan 2021
1.14.4Forge, Fabric, NeoForge8+declared19 Jul 2019

Frequently asked

Does Day Length work on Minecraft 1.21.6?

Yes. 1.21.6 is the newest Minecraft version Day Length declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does Day Length support?

Everything the author has declared, from 1.14.4 up to 1.21.6. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Day Length on the client or the server?

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

Which loader does Day Length need?

NeoForge, Forge, Fabric. A build for one loader will not load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Day Length?

Java 21 or newer, because that is what the newest Minecraft release it supports requires. The requirement comes from the game rather than from the mod itself.

What licence is Day Length under?

GPL-3.0-only, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install Day Length?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download Day Length safely?

From the author's own page on Modrinth, which is where the data here is synced from. MCReference never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.

Works on the same versions

Ordered by how much of the Minecraft version coverage overlaps, not by popularity.

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Last checked 1 d ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.