Short answer: Turnaround depends on word count, editing depth, subject complexity, file quality, and editor availability. A realistic deadline should be confirmed after the manuscript is reviewed; urgent work may require a different workflow and may cost more.
Build in time for your own review after editing. Tracked changes, queries, references, figures, and journal requirements may need author decisions before the manuscript is ready to submit.
If you have a fixed deadline, share the exact date and time zone before ordering. Do not rely on vague promises such as “instant publication” or “guaranteed fast acceptance,” which are outside an editor’s control.
For complex scientific or thesis projects, staged delivery can be more practical than rushing the entire document at once.