1. During the early hours of the morning, shortly after sunrise or before most people wake up
I woke up early in the morning to go for a run.
Acordei de manhã cedo para ir correr.
2. At a time in the morning that is considered early relative to usual wake-up times
The meeting starts early in the morning at 7 AM.
A reunião começa de manhã cedo, às 7 da manhã.