It impacted the ground near the far end of a 4500m runway...
I think it would have used a fair bit of runway decelerating as the crew had no brakes, reversers, or ground spoilers.
It clearly impacted the ground some distance from where it came to a stop.
If 12 seconds for gear retraction is for the gear to retract normally, it is not necessarily valid in this case as it would have been assisted back into the gear bay by the weight of the aircraft settling onto it and must have been selected before impact as the over centre lock did not prevent retraction. I would disregard the 12 seconds between the up selection and impact. In fact the nose gear doors are still open in the pics.
Probably all happened a lot quicker.