I have been working on putting the concept of dates in the editor.

Many RPGs like Personas now have the concept of calendar.

In the same map, depending on the current date some characters appear or not.

In the editor I've added a time bar that shows only the events that are within the current date: https://files.catbox.moe/ye4ity.webm

And then in each event you can put the period in which it is active: