Takeoff roll time is dependent on airport elevation altitude, weight, aircraft type, and power setting. Was just in DEN, forgot to time the takeoff roll.
Had a 757 Max power takeoff recently that took 48 secs from brake release to rotation.
Seemed long, but not as long as sitting in the back of a 727-200 at the same high altitude airport. That took 1:04 from brakes release to the start of rotation!
