Full time MBAs will require attendance every day. Because of the huge volume of group work, you will need to attend even if there is a day when you don't have a lecture.

With a part time MBA, then you could work simultaneously.

Some people find time during a full-time MBA for work - working at night for flexible internet-based work for example, but in general the workload in a full-time program, not to mention other obligations like networking events, etc., can be intense.

When I was a full-time student in the MBA at Tuck, I worked halftime. I'd wake up around 5 and then work through to 8.30 or so, before classes, and then I could get an hour in the late evening to pick up on the day's email. That was really hard, especially since I was living in student halls where people didn't typically sleep at 9. That really limited my ability to contribute fully to study groups, to network or simply to make friendships. I simply didn't have enough time to go as deeply as my classmates into the cases, and it showed in the classroom and in study groups and project teams. I can't recommend it. If you wnat to work then take a part-time MBA that is designed for people who work.