It's possible to pave a driveway in one day, but it's not recommended. Paving a driveway is a big job and should be done slowly and carefully to ensure the best results. If you're in a hurry, you might not be able to achieve the level of quality that you would if you took your time. In addition, paving a driveway is hard work and can be tiring, so it's important to take breaks throughout the day to stay refreshed and avoid injury.