Albert Barnes Commentary Acts 20:6

"And we sailed away from Philippi after the days of unleavened bread, and came unto them to Troas in five days, where we tarried seven days." — Acts 20:6 (ASV)

After the days of unleavened bread. After the seven days of the Passover, during which they ate only unleavened bread. See Exodus 12.

In five days. They crossed the Aegean Sea. Paul, when he crossed it on a former occasion, did it in two days (Acts 16:11–12); but the navigation of the sea is uncertain, and they were now probably hindered by contrary winds.