Well, editing a novel can take anywhere from a couple of weeks to several months. It depends on the complexity of the story, the quality of the initial draft, and the editor's schedule and workload.
The time it takes to edit a novel depends on a lot of factors. If the writing is clear and the plot is coherent, it might take a month or so. But if there are lots of grammar mistakes, plot holes, or character development issues, it could take several months.
It really varies. Sometimes it can take a few weeks if the novel needs major revisions. But for a relatively clean manuscript, maybe just a week or two.