It all depends on the state that you live in. Unemployment is funded by state and varies. You need to make contact with your unemployment office and get some information from them. I worked construction for 12 years before going back to school and claimed unemployment from several different states and the terms and conditions have always been different. As for the unavailability to work issue, If you are working at a job on a shift that allows you to goto school, you will be looking for another job with the same hours and shifts. So if you are unavailable during school hours should not effect you because that is not the job you had before. It is the same as being forced to work day shifts to stay home at night with children, they then can not expect you to then look for a job that works graveyards. You are supposed to be available to work the same hours and shifts that you were working at the previous job, if that makes since. But again in varies from state to state and my advice would be to talk to a service worker at the unemployment office, because what they did for one does not mean they will do for the other, all cases are treated as individual cases (time and money and etc..) and all we can do here is speculate, they can give you definite answers.