Minecraft Custom Day/Night Mod

The mod is a lightweight Fabric mod that runs on the server only, so players join without installing anything. Day and night lengths can be changed in two ways: speed multipliers that scale the default cycle, or exact tick-based durations. The defaults are a 60,000-tick day and a 12,000-tick night, and the mod is aimed at marathon building sessions under daylight as well as short, intense nights.

An interactive chat menu lets operators click buttons to adjust settings live. Each setting row has a clickable plus button that pre-fills the target command in the chat bar, and a blank value can be typed in directly. A hover shows the allowed range for each value, and a summary at the bottom lists resulting lengths for each phase in readable form. The chat menu requires the Custom Day/Night Mod on the client, while the server runs without it.

Changes apply without restarting the server through hot-reload. Settings can be saved to disk, restored to defaults or reset in one click. Values outside the allowed range are clamped to safe limits, whether entered by command or in the config file, and a warning is shown in chat. Console and chat messages carry the mod name and version.