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    2,053,304 files checkedFiles from Modrinth and CurseForge we downloaded and checked. Counted on 25 Oct 2026.636,163 files with their code readFiles whose code we turned back into readable code and read, in an isolated environment. Counted on 25 Oct 2026.269,472 projects gradedProjects with a letter from A to F. Counted on 25 Oct 2026.
    How it worksMalware we foundAPIAboutPrivacyTermsContact

    © 2026 ModgradeNot an official Minecraft product. Not approved by or associated with Mojang or Microsoft.

    Day Length

    Mod

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

    C79/ 100
    • OverviewC
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 1.21.6
    • ModpacksIn 51
    • ReleasesLatest 31 May

    Download

    daylength-2.0.0-neoforge-1.21.6.jar

    Released 22 Jun 2025 · 20.9 KB

    Passed: our checks found nothing harmful in this file.

    Download
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade C

    How grades work

    Strengths

    • Security checks passed
    • Public source code and issue tracker

    Points lost

    • Many modpacks removed it−7 points
    • No release in 5 months−4 points
    • Releases in only 6 of the last 24 months−2 points
    • Releases replaced within 3 days to fix a problem−1 point
    • Under 5 million downloads−1 point
    All 11 criteria

    • Maintenance

      4 points lost23 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.5 months ago (31 May 2026) 10 / 12
      Supports popular versionsWhether the project has a file for a Minecraft version that 15% or more of the popular mods updated in the last 6 months also support. A version many modpacks use, like 1.20.1 or 1.21.1, also counts after a release in the last 12 months.1.21.6 on NeoForge, 1.21.1 on Forge and Fabric. 15% or more of the popular mods updated in the last 6 months also have files for 1.21.1. Latest Minecraft: 26.3. 9 / 9
      Regular releasesIn how many of the last 24 months a new file came out. Full points at 8 months.Releases in 6 of the last 24 months 4 / 6

    • Stability

      8 points lost14 / 22
      Removed from modpacksHow many modpacks removed it in a later version of the pack. We can only see this in modpacks with two or more versions. A pack that swaps it for another edition of the same project, or that is rebuilt from scratch, does not count.13 of the 41 modpacks with two or more versions removed it in a later one (32%) See the 13 modpacks3 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.2 of its 14 releases in 2 years needed a quick fix (14%) See the 2 releases6 / 7
      Known conflictsHow many projects say they do not work with it, compared with how widely it is used. Packs, small projects, forks, ports, add-ons, alternatives and old versions do not count.None 5 / 5

    • Transparency

      Full points10 / 10
      Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · yigit-guven/Day-Length 7 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.GitHub issues · yigit-guven/Day-Length 3 / 3

    • Popularity

      1 point lost3 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.71,890 3 / 4

    • Track record

      2 points lost6 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.19 months, 24 releases 6 / 8

    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in all 7 latest files for recent Minecraft versions. See Security
    Total79 / 100

    56.2 of the 71 points that apply = 79 out of 100. The points above are rounded to whole numbers.

    Images

    • Day Length banner

    About

    Day Length lets you change how long a Minecraft day lasts, from shorter or longer custom cycles to a 48-hour cycle, and can also freeze time. It can synchronize the in-game time with the system clock or a chosen UTC offset, with smooth transitions as time settings change. Time advances smoothly tick by tick to reduce visible sun and moon jitter, and players can sleep to skip the night when real-time synchronization is off. Configuration is available through the in-game Mods menu and includes controls for day duration, real-time synchronization, UTC offset, and gradual time adjustments.

    Written from Modrinth and CurseForge . How we write it

    In-game changes

    Does not change the game's code directly.

    Adds no new blocks, items or other content.

    Keeps all of vanilla Minecraft's textures, models and sounds.

    Often used with it

    See all 30
    AmendmentsASodium Dynamic LightsCAttributeFixAFTB Ultimine (NeoForge)ASophisticated StorageA

    Details

    Creator
    yigitguven
    License
    GNU General Public License v3.0 only
    Downloads
    73K
    Created
    28 Mar 2025
    Official pages
    Modrinth , CurseForge
    Links
    Source code , Issues , Wiki , Discord

    Security

    No harmful code found

    We checked its files and read their code, without running it.

    What it can do on your computer

    Creates settings files
    The mod keeps its settings in the config folder of your game, where you can change or delete them. Only in its files for Fabric 1.20.1 to 1.21.1; NeoForge 1.21.1, 1.21.6; Forge 1.20.1 to 1.21.1.

    Why we show this: a mod runs on your computer like any program, so harmful code in it can take your accounts or files. Our checks look for known signs of harm. They cannot prove that a file is harmless. In the grade: malware means no grade, and a Warning in a latest file for a recent Minecraft version lowers it.

    How we checked · All 13 latest files checked, last on 16 Oct 2026
    • FilesWe download the files from Modrinth or CurseForge and look at what is inside them and what their code can do, without running them. Fixed rules tell what is harmful.
      13 latest files: the newest file for each Minecraft version and loader. The answer above is about the 7 for recent versions. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks. See each file in Releases
    • Their codeWe turn the code of the files back into readable code and follow what it does, without running it. This shows what it downloads, what it sends and where your login goes.
      Read without running it
    • Author on ModrinthThe disclosure form on Modrinth, where the author declares that the project reads or edits things on your system outside the game. Since 13 Aug 2026, Modrinth's rules require it when this applies.
      Nothing declared about your system outside the game.
    • Looked for, not foundWe looked for these in the file and did not find them.
      The internet, folders outside the game, other programs, updating itself, the webcam or microphone, an AI service.

    Privacy

    We found nothing it sends

    We read its code without running it: it contacts no web address while you play.

    Why we show this: a mod can send things about you over the internet, like your player name or your login. Contacting an address to check for updates or download files sends nothing about you. Not in the grade: sending data can be normal for what a mod does.

    How we checked · All 7 files read
    • Files readWe read the code without running it. We list each web address the code contacts while you play, and what it sends. Code that is never used is left out.
      The code of all 7 files, for recent Minecraft versions. See each file in Releases
    • Author on ModrinthThe disclosure form on Modrinth, where the author declares crash reports, usage data and advertisements. Since 13 Aug 2026, Modrinth's rules require it when a project collects data on its users or shows advertisements.
      Nothing declared about crash reports, usage data or advertisements.

    AI

    No sign so far that AI was used to make it

    We looked for AI tools in its texts, files and images and found none.

    We have not read its code history yet.

    No sign of AI in the game

    We found no AI service, AI library or AI model file in its code.

    Why we show this: some players and servers avoid projects made with AI, and AI in the game can send what you write to an online service. Not in the grade: using AI does not tell whether a project works well or is kept up to date.

    How we checked · 5 places read
    • Author on ModrinthThe disclosure form on Modrinth. Since 13 Aug 2026, Modrinth's rules require it when a substantial part of the code is AI output, when an asset is mainly AI output, or when the project or its page relies on generative AI.
      No AI content or AI features declared.
    • Code historyThe public code on GitHub: who made each change, credit lines such as "Co-authored-by", and its files.
      Not read yet
    • Description and changelogsThe description, project page and newest changelogs: sentences saying an AI tool was used, and text pasted from an AI chat.
      Nothing found
      40 changelogs read
    • Its filesFiles that AI coding tools leave behind (like AGENTS.md), and the texts inside the files you download.
      Nothing found
    • Images in its filesHidden data in the images of the files you download, where AI image tools write their name and settings.
      Nothing found
      1 image read
    • Code of the modThe code and files of the mod, read without running it: addresses of AI services, AI libraries, AI model files and a place for your own AI key.
      No AI service, AI library or AI model file
      4 code files read

    Compatibility

    See all 24 files
    Fabric
    NeoForge
    Forge
    1.141.171.2026.1

    Point at or tap a version to see its loaders.

    Runs onWhere to install it: in your game, on the server, or both. As the author says on Modrinth.Needed in your game and on the server, or you cannot join.
    RequiresProjects you must also install for it to work. From the author's lists for its files for recent Minecraft versions, or from its project page.
    Modrinth project 5EbA5aZnin some files
    OptionalProjects it can work with but does not need. The author lists them.Nothing
    IncludesProjects packed inside its files.Nothing
    Speed of updatesHow fast it gets a file for new Minecraft versions, on average, compared with similar projects. Not part of the grade.Its newest file is for 1.21.6. It has no file for the 5 newer Minecraft versions. It also supports 1.21.1, a version many recently updated mods still support.

    Modpacks using this project

    Find modpacks with it

    51 modpacks include Day Length in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    Medieval Europe Adventures42K downloadslast version with it 17 Oct 2026The Forsaken Dawn I {Zombie Apocalypse }5K downloadslast version with it 4 Jun 2025Fiction Friction Gaming4.8K downloadslast version with it 23 Aug 2025NeoCraft Gardens & Gadgetry4.6K downloadslast version with it 1 Aug 2025United Colonies4.2K downloadslast version with it 20 Mar 2026Volts Next Generation & Official Server 2.8K downloadslast version with it 3 Aug 2025Syl's Mega Mayview Enhanced2K downloadslast version with it 8 Jan 2026Rise of Power2K downloadslast version with it 10 May 2025Dwarfz 51.9K downloadslast version with it 6 Aug 2025DyssiCore1.9K downloadslast version with it 3 Oct 2026
    1 to 10 of 30123

    Often in the same modpacks

    Mods that modpacks often add together with Day Length. Share: how many of the modpacks with Day Length also have that mod.

    ProjectTypeShareGrade
    AmendmentsAModin 57% of the modpacks with Day LengthSodium Dynamic LightsCModin 49% of the modpacks with Day LengthAttributeFixAModin 47% of the modpacks with Day LengthFTB Ultimine (NeoForge)AModin 43% of the modpacks with Day LengthSophisticated StorageAModin 41% of the modpacks with Day LengthTerralithAModin 39% of the modpacks with Day LengthLoot IntegrationsAModin 37% of the modpacks with Day LengthCreate: Copycats+AModin 37% of the modpacks with Day LengthWhat Are They Up To (Watut)BModin 37% of the modpacks with Day LengthHandcraftedCModin 37% of the modpacks with Day Length
    1 to 10 of 30123

    Latest files

    The newest file for each Minecraft version and loader. The files for recent versions come first. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks.

    MinecraftLoaderVersionSecuritySendsRequires
    1.21.6·NeoForge2.0.02.0.0 · daylength-2.0.0-neoforge-1.21.6.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.4·NeoForge2025.4.1.22025.4.1.2 · day_length-2025.4.1.2-neoforge-1.21.4.jarSends: None foundRequires:Modrinth project 5EbA5aZnModrinth project 5EbA5aZnPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.1·Fabric3.0.13.0.1 · daylength-3.0.1-fabric-1.21.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.1·NeoForge2.0.02.0.0 · day_length-2.0.0-neoforge-1.21.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.1 to 1.21.1·Forge3.0.23.0.2 · daylength-3.0.2-forge-1.20.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.1·Fabric3.0.13.0.1 · daylength-3.0.1-fabric-1.20.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.1·Forge3.0.13.0.1 · daylength-3.0.1-forge-1.20.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    Older Minecraft versions
    1.20.2 to 1.20.6·Forge2.0.22.0.2 · daylength-2.0.2-forge-1.20.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.19.4·Forge2025.3.1.02025.3.1.0 · day_length-2025.3.1.0-forge-1.19.4.jarSends: None foundRequires:Modrinth project 5EbA5aZnModrinth project 5EbA5aZnPassedOur checks found nothing harmful in this file. Its code was read too.
    1.19.2·Forge2025.3.1.02025.3.1.0 · day_length-2025.3.1.0-forge-1.19.2.jarSends: None foundRequires:Modrinth project 5EbA5aZnModrinth project 5EbA5aZnPassedOur checks found nothing harmful in this file. Its code was read too.
    1 to 10 of 1312

    24 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.20.1 to 1.21.11.20.1 to 1.21.1The latest file for its Minecraft version and loader·Forge3.0.23.0.2 · daylength-3.0.2-forge-1.20.1.jar (main file)·31 May 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 80.2 KB
    1.21.1The latest file for its Minecraft version and loader·Fabric3.0.13.0.1 · daylength-3.0.1-fabric-1.21.1.jar (main file, 1 other file in this version not shown)·3 Mar 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 98.7 KB
    1.20.1The latest file for its Minecraft version and loader·Fabric3.0.13.0.1 · daylength-3.0.1-fabric-1.20.1.jar (main file, 1 other file in this version not shown)·3 Mar 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 98.5 KB
    1.20.1The latest file for its Minecraft version and loader·Forge3.0.13.0.1 · daylength-3.0.1-forge-1.20.1.jar (main file)·3 Mar 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 78.7 KB
    1.20.1·Forge3.0.03.0.0 · daylength-3.0.0-forge-1.20.1.jar (main file)·1 Mar 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 164.2 KB
    1.20.1 to 1.20.61.20.1 to 1.20.6The latest file for its Minecraft version and loader·Forge2.0.22.0.2 · daylength-2.0.2-forge-1.20.1.jar (main file)·8 Jul 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 26.5 KB
    1.20.1 to 1.20.61.20.1 to 1.20.6·Forge2.0.12.0.1 · daylength-2.0.1.jar (main file)Beta·8 Jul 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 22.7 KB
    1.21.6The latest file for its Minecraft version and loader·NeoForge2.0.02.0.0 · daylength-2.0.0-neoforge-1.21.6.jar (main file)·22 Jun 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 20.9 KB
    1.21.1The latest file for its Minecraft version and loader·NeoForge2.0.02.0.0 · day_length-2.0.0-neoforge-1.21.1.jar (main file)·22 Jun 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 20.9 KB
    1.20.1 to 1.20.61.20.1 to 1.20.6·Forge2.0.02.0.0 · day_length-2.0.0-forge-1.20.x.jar (main file)·20 Jun 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 22.1 KB
    1.21.4The latest file for its Minecraft version and loader·NeoForge2025.4.1.22025.4.1.2 · day_length-2025.4.1.2-neoforge-1.21.4.jar (main file)·14 Apr 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 40.9 KB
    1.21.1·NeoForge2025.4.1.22025.4.1.2 · day_length-2025.4.1.2-neoforge-1.21.1.jar (main file)·14 Apr 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 40.7 KB
    1.20.1·Forge2025.4.1.22025.4.1.2 · day_length-2025.4.1.2-forge-1.20.1.jar (main file)·14 Apr 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 39.6 KB
    1.21.4·NeoForge2025.4.1.12025.4.1.1 · day_length-2025.4.1.1-neoforge-1.21.4.jar (main file)·13 Apr 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 40.8 KB
    1.21.1·NeoForge2025.4.1.12025.4.1.1 · day_length-2025.4.1.1-neoforge-1.21.1.jar (main file)·13 Apr 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 40.7 KB
    1.20.1·Forge2025.4.1.12025.4.1.1 · day_length-2025.4.1.1-forge-1.20.1.jar (main file)·13 Apr 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 39.6 KB
    1.21.4·NeoForge2025.3.1.02025.3.1.0 · day_length-2025.3.1.0-neoforge-1.21.4.jar (main file)·28 Mar 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 1.0 MB
    1.21.1·NeoForge2025.3.1.02025.3.1.0 · day_length-2025.3.1.0-neoforge-1.21.1.jar (main file)·28 Mar 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 1.0 MB
    1.20.1·Forge2025.3.1.02025.3.1.0 · day_length-2025.3.1.0-forge-1.20.1.jar (main file)·28 Mar 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 1.0 MB
    1.19.4The latest file for its Minecraft version and loader·Forge2025.3.1.02025.3.1.0 · day_length-2025.3.1.0-forge-1.19.4.jar (main file)·28 Mar 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 1.0 MB
    1 to 20 of 2412

    Quick fixes

    In the last 2 years, 2 releases needed a quick fix: a new release within 3 days to fix a problem. This lowers the grade by 1 point.

    See them, newest first

    Quick fixesReleases followed within 3 days by a new release that fixes a problem in them.2

    • daylength-2.0.2-forge-1.20.1.jar8 Jul 2025…gamerule dodaylightcycle's function Fixed minor sleeping bugs
    • day_length-2025.4.1.2-forge-1.20.1.jar14 Apr 2025Fixed incompatibility with DoDayLightCycle gamerule…