My experience may be outdated as it is now ten years old. My experience was if you’re auditioning, you should be the first one there and the last to leave. That did put me over 80 hours routinely, but this was for a surgical subspecialty. If an OR was still running, I joined it after my assigned day was done. Maybe times and/or expectations have changed. To my knowledge, ACGME work hour restrictions don’t actually apply to med students. I worked over 80 sometimes in my home program as well.