This mod saves and simulates the time passed on an unloaded chunk. Trees and crops will have grown when you come back to a chunk after a long time
In vanilla Minecraft, chunks that are not in simulation distance will not grow crops or saplings. If you plant a field of wheat and travel away from this chunk, when you come back to it, the field will appear exactly as you left it.
This mod solves that problem by saving the time stamp when a chunk is not in simulation distance or becomes unloaded. When you eventually return to this chunk, your crops and saplings will grow based on how much time has passed.
This mod DOES NOT keep the chunks loaded and only works on the following block instances:
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