Why is Ponyboy so late getting home in Chapter 3?

In Chapter 3 of "The Outsiders," Ponyboy is late getting home because he spends time with Johnny after they leave the drive-in movie. They encounter Cherry and Marcia, and later, Ponyboy and Johnny walk to a park, discussing their feelings and experiences. This extended interaction, along with their detour, causes Ponyboy to lose track of time, leading to his tardiness. As a result, he faces the wrath of his older brother, Darry, when he finally arrives home.