A. Einstein states in The Principle of Relativity, pp 111 - 112: "The modification to which the special theory of relativity has subjected the theory of space and time is indeed far-reaching, but one important point has remained unaffected. For the laws of geometry, even according to the special theory of relativity, are to be interpreted directly as laws relating to the possible relative positions of solid bodies at rest; and, in a more general way, the laws of kinematics are to be interpreted as laws which describe the relations of measuring bodies and clocks. To two selected material points of a stationary rigid body there always corresponds a distance of quite definite length, which is independent of the locality and orientation of the body, and is also independent of the time. To two selected positions of the hands of a clock at rest relatively to the privileged system of reference there always corresponds an interval of time of a definite length, which is independent of place and time. We shall soon see that the general theory of relativity cannot adhere to this simple physical interpretation of space and time." It is now, according to my wrist watch (my wrist watch and the clock of the United States synchronize), 9:11 am, 10/9/2006, here in Burbank, California. Let the two selected positions of the hands of my wrist watch be 6:28 pm, 10/8/2006 thru 6:27 pm, 10/9/2006. Can anyone give me an example of how these two selected positions of the hands of my wrist watch (to which an interval of time of a definite length, 86340 s, corresponds) is not independent of place and time? Or how does this interval of time depend on place and time? Or what is the value of this interval of time if a different place and time is given? Thanks!