The planned or expected time at which a plane, train, or other vehicle is scheduled to leave.

प्रस्थान का अनुमानित समय

English Usage: The airline announced that the estimated time of departure would be delayed by two hours.

Hindi Usage: एयरलाइन ने घोषणा की कि उड़ान का अनुमानित प्रस्थान समय दो घंटे देर से होगा।