ActiveTime
Your world only progresses while you play.
ActiveTime is a lightweight server-side mod/plugin built for private SMPs, co-op groups, and modded survival playthroughs.
Leaving a 24/7 server running shouldn't punish you. When nobody is online, world progression shouldn't advance needlessly: seasons shouldn't rotate, days shouldn't tick away, and time-based difficulty shouldn't scale up while everyone is asleep.
Using Minecraft's native tick simulation freeze (1.20.3+), ActiveTime automatically pauses the world the moment the server is empty, and resumes instantly before the next player loads in.
Available for: Paper / Purpur, Fabric, and Forge (1.20.3+)
Why use ActiveTime?
Everyone is offline: Instead of days cycling needlessly, seasons passing, and crop timers running out, the world simulation freezes completely in place.
Modded progression: Prevents difficulty from scaling up and food from spoiling while you sleep. All mod timers (seasons, day counters) pause safely.
A friend joins at 3 AM: No waking up to a different in-game week. The game resumes instantly right where the group left off.
Your world only progresses while you play. Automatically freezes the Minecraft simulation when no players are online.
Your world only progresses while you play. Automatically freezes the Minecraft simulation when no players are online.