public Reservation withStart(String start) {
        setStart(start);
        return this;
    }
The day and time that the reservation becomes active. You set this value when you purchase the offering.

@param start
       The day and time that the reservation becomes active. You set this value when you purchase the offering.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-mediaconnect/src/main/java/com/amazonaws/services/mediaconnect/model/Reservation.java