Taking 12 units in one semester is considered a full-time load. To be eligible for athletics and other selected programs on campus, you must be considered full-time.
Classes meet at different times in the mornings, afternoons and evenings.
You should choose your class schedule to meet your needs. A 1-hour class meets for 50 minutes. I ve attended another college. Yes, they may be accepted for credit. You should have an official transcript sent to CCSF for it to be evaluated.