Accurate Skies

The mod replaces the vanilla day-night loop with a 24-hour cycle, so the sun and moon rise and set at times that match real life. Its main setting, Accurate Celestial Bodies, lets the sun's position follow the sky at the player's location, and the moon can appear during the day as it does in reality. Without that setting active, the day still runs on a 24-hour cycle, but the sun and moon keep vanilla placement.

Two modes decide where the player's location comes from. The first relies on the system clock and timezone and is enabled by default. The second uses geolocalisation: the position is found from the player's IP address through ipify, and a device database is installed on first use. The mod's own config controls which mode is active, and the Use Geo Localisation setting must be enabled before the second mode can be used. Location estimates from IP can be inaccurate. The ADNC command enables geolocalisation in game.

The mod is open source under the CC0 1.0 Universal license. It targets Fabric only and needs Fabric API and oωo (owo-lib). Mod Menu is optional, as is Sodium. Accurate Skies works on either side of a connection, and neither side needs it. In a multiplayer setting a modded server sends its own geolocalised timezone data to clients, while a vanilla client with a modded server will still see the server's timing. Files cover 1.21.1 – 1.21.11, with 1.0.4 for 1.21.11 as the latest file.