EDIT: This has been flag as duplicate, however the other post does not address the context of 1) internship and 2) no overlapping conflict (I am not leaving a job for another). While I understand that I don't need provide any justification to my employer, my concerns are regarding the necessary professional courtesies.
I am currently a month-in my internship with a great team and manager.
I recently got invited to an interview at a big 4 software company and might have to miss time at my current work to attend it. This interview will be for my next internship.
Should I inform my current manager about it, and to what extend?