Iron Man flies from Malibu to Gulmira[]
Distance between Malibu and Afghanistan is around 16254.25km or 16254250m
it appears to be night in the U.S as Tony flies to Gulmira, and when he's already reached it, it appears to be morning
for the time in Gulmira i'll assume 11:00, and for the time in the U.S i'll assume 20:00, as the filming took place between march and june so night would set somewhat early
Afghanistan is also 12:30 hours ahead of California so 11:00 for Afghanistan would be 22:30 for California
22:30 - 20:00 = 2 hours and 30 minutes or 9000 seconds
16254250m : 9000s = 1806.02m/s (Hypersonic)
Iron Man and Iron Monger fly past the clouds[]
Iron Man starts ascending at 2:36 and flies through a cloud at 2:41 so the timeframe is 5 seconds
The clouds resemble cirrus clouds, which form at a minimum altitude of 5000m, i'll be using the minimum since those look like fairly low clouds
5000m : 5s = 1000m/s (Supersonic+)