Extended Time

Real-Time Day Cycles

Extended Time gives you total control over the duration of a Minecraft day. Whether you want a realistic 24-hour cycle, a 1-hour "long day," or a custom duration, this mod handles it with precision.

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SERVER-SIDE ONLY: This mod does not need to be installed on the client. Players can join your server with a vanilla client.

Features

Smooth Engine

Unlike basic commands that "skip" ticks, Extended Time uses a precise Accumulator Algorithm. It ensures the smoothest possible sun movement achievable server-side by calculating exact tick additions.

Capabilities

Custom Duration: Set day length to any number of minutes.
Real-Time Sync: Sync Minecraft sun with your actual server clock.
Presets: Switch between 24h, 1h, 12h modes instantly.
No Conflicts: Automatically handles doDaylightCycle.
Persistent: Settings save automatically.

Mechanics

Vanilla Minecraft runs on a 20-minute cycle. Extended Time decouples game time from tick rate.

Setting	Effect
Vanilla	20 minutes cycle.
60 Minutes	Time passes 3x slower.
1440 Minutes	24 Hours Real-Time.
Sync	Sun position matches local clock.

Commands

Requires OP Level 4.

Set Duration

Define specific day length in minutes.

/extendedtime set 60 (1 Hour)
/extendedtime set 1440 (24 Hours)

Presets

Quickly apply settings.

/extendedtime preset real_life
/extendedtime preset long_day
/extendedtime preset half_day
/extendedtime preset minecraft

Sync Time

Align game time with real world clock.

/extendedtime sync_realtime

Reset

Return to vanilla behavior.

/extendedtime reset

Configuration

Saved to config/extended_time.json.

{
  "day_duration_minutes": 1440.0
}