You can see the turnaround time estimates that are based on the length of the video and the subscription plan that you have here:

If your requests are short in length or doesn't require a lot of editing, they will be delivered quicker. Complex requests can take more time than what our general estimates suggests. Less complex videos can be delivered quicker on Scale and Pro plans and you can even get multiple requests per day.
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It depends on the requests scope, complexity and details. See a full explanation here.