Solarbound

Solarbound makes Minecraft’s daylight follow the real sun in your chosen city.
When you first enter a world, a city picker appears. Your choice saves with that world, and you can change it under Options → Solarbound….
The mod uses the current date and time, plus your city’s coordinates, to calculate the sun’s height and direction. That naturally gives you shorter days and a lower sun in winter, longer days in summer, and changing dawn and dusk times. It works offline after installation.
On servers, everyone shares the city selected by an operator. The server supplies the time, so players’ own clocks and time zones don’t change what they see. Install Solarbound on both the server and clients for the calculated sun path.
Gameplay still runs at normal speed. Movement, furnaces, redstone, and crop growth aren’t slowed down. The day/night clock is adjusted, and sleeping cannot skip the night.
The sun is smaller to better match real sunset timing. Weather, sky colors, the moon, and stars remain Minecraft-style; they aren’t exact real-world simulations.

Preview

Credit: DataGhost57

License: MIT