MrDayNight

🕰️ MrDayNight

by Genesis Project

Take control of Valheim’s time itself — extend the light, embrace the dark.

📜 Overview

MrDayNight is a simple yet powerful mod that lets you control the duration of day and night in Valheim.

Customize how long the sun shines or how long the shadows last — whether you want endless daylight or a world trapped in eternal night.

Perfect for both server administrators and solo adventurers, it provides fine-grained control over the day/night cycle while staying fully synced across multiplayer worlds.

⚙️ Features

• ✅ Customize day length and night length individually (in seconds).
• ✅ Fully synchronized across clients when used on a server with Jötunn.
• ✅ Automatically enforces server settings — players cannot override them.
• ✅ Works in single player (local settings) and multiplayer (server-synced).
• ✅ Clean logs and 100% compatible with all environment mods.

🔧 Configuration

After launching the game once, the config file will be created at:

BepInEx/config/genesisproj.mrdaynight.cfg

Example:

[Tempo]

Duração do dia em segundos (default = 1200)

Setting type: Single

Default value: 1200

DayLength = 1200

Duração da noite em segundos (default = 600)

Setting type: Single

Default value: 600

NightLength = 600

🧩 Dependencies

| Mod | Required | Purpose |

|------|-----------|----------|

| BepInExPack Valheim | ✅ | Core mod loader |

| Jötunn | ✅ | Syncs configurations between server and clients |

🧠 How It Works

• When a world starts, MrDayNight hooks into the EnvMan initialization.
• The mod sets EnvMan.m_dayLengthSec based on your chosen values.
• On servers, these values are propagated to all connected players automatically.
• In single player, your local config values are used.

🏰 Server Behavior

| Environment | Behavior |

|--------------|-----------|

| Dedicated server with Jötunn | Server config is enforced on all clients. |

| Single player | Local configuration applies. |

| Vanilla server (without Jötunn) | Each client uses local config independently. |

🧑‍💻 Technical

• Built using BepInEx 5.4+, HarmonyX, and Jötunn 2.26.1.
• Written in C# targeting.NET Framework 4.8.
• Thread-safe, no reflection abuse, and uses clean Harmony patches.

📦 Installation

• Install BepInExPack for Valheim.
• Install Jötunn.
• Extract the contents of this mod to:

Valheim/BepInEx/plugins/

• Launch the game.
• Configure and enjoy your custom day/night balance.

🧙‍♂️ Credits

• Developed by BRKiHeL / Genesis Project
• Built with Jötunn Modding Framework
• Inspired by Valheim’s mystical world and community creativity

🐉 License

This project is open source under the MIT License.

Feel free to modify or redistribute, crediting Genesis Project.