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Longer Day

Allows you to configure how long a day and night lasts in minecraft, this mod by default sets its to 1 hour for day and 1 hour for night instead of the original 10 minute day and night.

Longer Day

Longer Day cover image

A lightweight, configurable mod for Minecraft 1.12.2 Forge that lets you control the length of day and night cycles. By default, both day and night last 1 real hour each (2 hours total per cycle), instead of vanilla's 10 minutes each.

How It Works

The mod slows down Minecraft's internal time progression so that the sun and moon move smoothly across the sky at a fraction of their normal speed. Both server-side game logic (crop growth, mob spawning) and client-side rendering (sun position, sky color) are properly synchronized for a seamless experience.

Configuration

All settings are configurable via the longer_day.cfg file (generated on first run):

Setting Default Description
dayLengthMinutes 60 How long a Minecraft day lasts in real minutes (vanilla = 10)
nightLengthMinutes 60 How long a Minecraft night lasts (only used if sync is off)
syncNightWithDay true Night automatically matches day length

Examples

  • 1 hour day + 1 hour night: Default (60/60, sync on)
  • 30 min day, 30 min night: Set dayLengthMinutes=30
  • Long days, short nights: Set syncNightWithDay=false, dayLengthMinutes=60, nightLengthMinutes=10

Features

  • Smooth sun movement — Client-side time interpolation ensures the sun and moon glide smoothly across the sky with no stuttering or teleporting.
  • Independent day/night lengths — Day and night can be configured to different durations.
  • Auto-sync option — By default, night length mirrors day length for balanced cycles.
  • Server-compatible — Works on both singleplayer and dedicated servers.
  • Sleep and time commands — Properly handles /time set and sleeping in beds without desync.

Compatibility

  • Minecraft 1.12.2
  • Forge 14.23.5.x
  • Client and server side

Credits

Author: Itamio

The Longer Day Team

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