When developing film yourself at home, the darkroom process can take anywhere from 30 to 90 minutes to develop a roll of film. Film development times will depend on your equipment, film development techniques, and the chemicals you are using to develop the film.
Film chemicals, including developers, fixers, stop baths, and hardeners, will all have different required processing times depending on their purpose and instructions. Black and white photography chemistry is different from the chemicals for color photography and will have different processing times as well. Be sure to follow the instructions on developing chemicals to help you get the most out of your film negatives.