My students' midterm is upcoming. They will download a pdf sheet with the questions, answer those questions in a word file or on paper then photograph and compile into a pdf, and then upload their answers. Since this is a remote class and I have students in many different timezones, they should be able to start their midterm whenever they choose on the test day. However, once they start, there needs to be a timer that allows for 3 hours.
Is this functionality available, and would it be via Quiz or via Assignment?