data pack

Extra Long DaysMinecraft data pack for 1.21.11

Extends the length of the minecraft days, from 20 Minutes (10m day, 10m night) to 2 Hours (60m day, 60m night)

server onlynewest supported release 1.21.11Utility Adventure Game Mechanics Management

Latest version: 1.0.2+mod
Minecraft: 1.20 to 1.21.11
Works with: NeoForge, Quilt, Forge, Fabric
Licence: LGPL-3.0-or-later
Downloads: 1.4k
Updated: 8 mo ago
Available on: Modrinth

Our hosting

Host Extra Long Days servers

Deploy a server with Extra Long Days already added to the world, on hardware built for it.

1.21.11
Data pack
NeoForge
Quilt
Forge

One click install
Version matched
Automatic backups
NVMe SSD

Deploy a serverFrom €0.90 per GB

Minecraft versions

Every version Extra Long Days declares support for, newest first, with the Java runtime that version needs.

Other data packs

Minecraft	Through	Java	Evidence	Released
1.21.11	Data pack, NeoForge, Quilt, Forge, Fabric	21+	declared	9 Dec 2025
1.21.10	Fabric, Quilt, NeoForge, Forge, Data pack	21+	declared	7 Oct 2025
1.21.9	Fabric, Quilt, NeoForge, Forge, Data pack	21+	declared	30 Sept 2025
1.21.8	Fabric, Quilt, NeoForge, Forge, Data pack	21+	declared	17 Jul 2025
1.21.7	Fabric, Quilt, NeoForge, Forge, Data pack	21+	declared	30 Jun 2025
1.21.6	Fabric, Quilt, NeoForge, Forge, Data pack	21+	declared	17 Jun 2025
1.21.5	NeoForge, Quilt, Forge, Fabric, Data pack	21+	declared	25 Mar 2025
1.21.4	Data pack, Quilt, NeoForge, Forge, Fabric	21+	declared	3 Dec 2024
24w46a	Fabric, Quilt, NeoForge, Forge, Data pack	21+	declared	13 Nov 2024
24w45a	Fabric, Quilt, NeoForge, Forge, Data pack	21+	declared	6 Nov 2024
24w44a	Fabric, Quilt, NeoForge, Forge, Data pack	21+	declared	30 Oct 2024
1.21.3	Fabric, Quilt, NeoForge, Forge, Data pack	21+	declared	23 Oct 2024
1.21.2	Forge, Quilt, Data pack, NeoForge, Fabric	21+	declared	22 Oct 2024
1.21.2-pre2	Forge, Data pack, Fabric, NeoForge, Quilt	21+	declared	10 Oct 2024
1.21.2-pre1	Data pack, Quilt, NeoForge, Forge, Fabric	21+	declared	8 Oct 2024
24w40a	Fabric, Quilt, NeoForge, Forge, Data pack	21+	declared	2 Oct 2024
24w39a	Fabric, Quilt, NeoForge, Forge, Data pack	21+	declared	25 Sept 2024
24w38a	Fabric, Quilt, NeoForge, Forge, Data pack	21+	declared	18 Sept 2024
24w37a	Fabric, Quilt, NeoForge, Forge, Data pack	21+	declared	11 Sept 2024
24w36a	Fabric, Quilt, NeoForge, Forge, Data pack	21+	declared	4 Sept 2024
24w35a	NeoForge, Quilt, Forge, Fabric, Data pack	21+	declared	28 Aug 2024
24w34a	Data pack, Quilt, NeoForge, Forge, Fabric	21+	declared	21 Aug 2024
24w33a	Fabric, Quilt, NeoForge, Forge, Data pack	21+	declared	15 Aug 2024
1.21.1	Fabric, Quilt, NeoForge, Forge, Data pack	21+	declared	8 Aug 2024
1.21	Fabric, Quilt, NeoForge, Forge, Data pack	21+	declared	13 Jun 2024
1.20.1	Fabric, Quilt, NeoForge, Forge, Data pack	17+	declared	12 Jun 2023
1.20	Forge, Quilt, Data pack, NeoForge, Fabric	17+	declared	2 Jun 2023

Download

From Extra Long Days’s own host. Nothing is re-hosted here.

For Minecraft 1.21.11

Choose the loader you use before downloading.

Fabric, Forge, NeoForge, Quilt
1.0.2+mod · 15 Mar 2026
Multiple loaders are listed; verify the file before downloading.
Choose file on publisher ↗
Loader not listed
1.0.2 · 15 Mar 2026 · longdays_1_21_11.zip
Get release

Most recently published release

1.0.2+modrelease15 Mar 2026

extra-long-days-1.0.2.jar · 4 KB · for 1.21.11 · Fabric, Forge, NeoForge, Quilt

Choose file on publisher ↗

d48b58fd7fba…

Older versions4

1.0.215 Mar 20261.21.112 KB67 downloads4e994d33b2c3…Get
1.0.1+mod30 Jan 20261.21.10, 1.21.9, 1.21.8, 1.21.7, 1.21.6 +19 more4 KB440 downloadsd5d8121b5f0c…Choose file on publisher ↗
1.0.130 Jan 20261.21.10, 1.21.9, 1.21.8, 1.21.7, 1.21.6 +19 more2 KB34 downloads2650c4f87184…Get
1.018 Jan 20261.20.1, 1.202 KB17 downloadsc27c71aa9888…Get

Frequently asked

Does Extra Long Days work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version Extra Long Days 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 Extra Long Days support?

Everything the author has declared, from 1.20 up to 1.21.11. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Extra Long Days on the client or the server?

The server only. Players join with an ordinary Minecraft client and install nothing.

What licence is Extra Long Days under?

LGPL-3.0-or-later, 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 Extra Long Days?

Data packs install per world: put the downloaded file in that world's datapacks folder and run /reload, or add it when creating the world. No loader is involved. On a server, the world folder lives next to the server jar.

Where do I download Extra Long Days safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

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

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