New job opportunity but scheduling issue

[PoutineLover]

I am hoping some of you can give me advice on what to do in this situation. I currently work 4 days a week (27hrs) which is 80% of full time at the organization I work for. The job pays the bills, but it's not what I want to do for the rest of my life. I just found out about another opportunity, at the same organization, which is a bit more in line with my career goals, but is just 20.25 hours a week, and about $4 per hour less pay. I don't really want to take a pay cut, but I would rather do the new job (still gotta officially apply, but I'm in contact with the hiring person and I'm pretty well qualified so I think I'd get it).
I'm thinking that if I cut back on my hours at the current job, to 20 or less, and take the new job, I'd get a net increase in pay but I'd be working more hours a week and my average hourly rate would decrease (about 40 hours, which I think I could handle, although I'd miss the part time schedule). Now, I know I could get the same amount of work done in less time, since the workload isn't super heavy, but how do I go about negotiating this? I don't want my boss to think I've been wasting a day of work by telling her I think I could get the same amount done in less time. And should negotiate to get at least the same hourly pay at the new job? Please help me figure out what to do!

[mozar]

I wouldn't mention that you can do the same work in less time. I've heard people talk about how they decreased their hours at a job and then were slowly expected to do more work in less time anyway. You can just say you want to decrease your hours. But I would try both at 47 hours a week and see if this other job is something you really like more and go from there. Employers don't like it when employees try to change things so I would take both for awhile and see how things go. And it's always a good idea to negotiate pay.