A long-haul flight was scheduled to depart at 8:00 AM and travel a distance of 12,600 km. Due to the technical checks the flight actually departed 2.5 hours late. To cut the overall delay, the pilot increased the average speed by 150 km/h, and as a result the flight arrived only 30 minutes late. If instead the pilot had increased the average speed by 400km/h after the same 2.5 hour departure delay, when would the flight have reached its destination?