I've been working at my current job part-time for a few years. Just a few days before we were asked to submit our summer hours of availability, I was offered an internship at another company, which I accepted.
What makes this different from When is the right time to give my notice to leave my current company? is that I want to continue working part-time at my current job. However, I can't submit my hours of availability until I'm given my new work schedule for my internship.
How should I tell my boss I've accepted an internship at another company, but I would like to continue my current part-time job if my schedule permits it?