public Task withCreatedAt(java.util.Date createdAt) {
        setCreatedAt(createdAt);
        return this;
    }
<p>
The Unix timestamp for the time when the task was created. More specifically, it's for the time when the task
entered the <code>PENDING</code> state.
</p>

@param createdAt
       The Unix timestamp for the time when the task was created. More specifically, it's for the time when the
       task entered the <code>PENDING</code> state.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-ecs/src/main/java/com/amazonaws/services/ecs/model/Task.java