This week, using my P&S to shoot some weather pix, I spent maybe two to three minutes dodging and burning on one print, including opening through ACR. It seemed that the printer took more time to print it than it did to craft the image properly for output, including the black-and-white conversion.
Sometimes, it takes several days and multiple takes to "develop" an image; other days, it's aced at the release of the shutter.
So, depending upon your image, it can push-and-print and the printer is the time hog and other times that an image may require 8-12 layers of burning, dodging, refining, HDR, black-and-white conversion, and another round of burning and dodging.
A range for me can be from say two minutes, including opening through ACR to hitting the print button to an hour or more and spaced over several sessions to fine tune and carefully craft an image. Sometimes it take revisiting an image months or years later from raw to paper to get it right, just like Ansel Adams would take an image made years or decades before and then coax a masterpiece from an old plate or negative using the result of his years of craft.
No mater what, it all starts with a vision before the image capture where you see the end result. Whether your skill can achieve that vision or not is depending upon your ability to properly craft the image. With a high level of skill, it may take minutes, with lesser skill, it may not be ready for prime time until months or years later.
Of course, YRMV....