I’ve decided to modify my server with a mod called Time Control, you simply download it from the link and moved the mod to the “mods” folder. Make sure if you’re navigating the correct mod folder for the version RLCraft 1.12.2
Otherwise it’s the same simply download RLCraft from CurseForge or TLauncher.
Here’s the direct-download link if you’re unsure of which version to download https://cdn.modrinth.com/data/Mksh0eV4/versions/1.0.0.0/timecontrol-1.12.2-1.0.0.0-beta.jar
The purpose of Time-Control mod is to prolong the day night cycle instead of a day lasting 20minutes now a day last 1hour (30min day / 30 min night)