Final answer:
The Chronosystem, which is part of family ecological theory, is the system related to time.
Step-by-step explanation:
The system described in family ecological theory that is related to time is the Chronosystem. The Chronosystem represents the dimension of time and how it influences individuals and families through the transitions and events that occur over their lifespan. It includes historical events, cultural changes, and personal life experiences that can have long-lasting effects on development.