The Feast of the Passover: Called The: Days of Unleavened Bread
Source: TTT
Acts 12:3
And seeing that this pleased the Jews, Herod proceeded to seize Peter during the Feast of Unleavened Bread.
Acts 20:6
And after the Feast of Unleavened Bread, we sailed from Philippi, and five days later we rejoined them in Troas, where we stayed seven days.