It's 20 minutes, but the relevant to this discussion stuff is 17-19 minutes in. But, the whole thing is well done, and sets up the question at hand, IMHO.
It's funky, but your speed varies, as the earth spins each day, from like 1,299,500 MPH to 1,300,500 MPH!
Right, because of the rotation of the earth. Your speed will also vary on an annual basis based upon the point in the earth's orbit around the sun.