I'll resist the urge to be smart-alecky, and instead suggest that you need to add details about what you plan to remove the tree with.
It's still gonna depend on the soil and other factors we can't know. (What's it next to, can you trample stuff around it, is the soil wet, and what's your incentive.) Given that you ask the question, you probably don't have a lot of experience with this. If I were doing it in my very sandy soil in the back yard, without help, using only those tools: maybe two hours due to my indecisiveness. Front yard with marl (clay) probably five hours with the same waffling initially, but then massive amounts of hard labor. And time out for bandaids and beverages. With either experience or a bobcat/tractor/truck with a winch cut the time in half or less. With my brother helping, triple the time.
if using a chainsaw dont make the mistake of cutting to ground level then trying to dig out, leave yourself a nice 3 to 5 foot stem to lever upon.
