How many days a firefighter work a month?

It depends on the schedule they run and each department is different. For example, on a career department they usually run 24 hour shifts but it could be 8, 12, 16 or 48. The most common is a 24 on, 48 off schedule and if that's the case you would only work about 10 days a month. Volunteers can run any number of different shifts including being on for a week at a time but they usually respond via pagers from home.