Let me start by saying I most likly have no idea what I am doing. Also, that I realize the factor by which the moveing clock differs from the stationary one will be very very small. Sorry if this belongs in the math fourm, i thought it might require physics knowledge. What I'm having problems with is the systems of measurement and how they work together. gamma = sqrt(1-v^2) v relitive to the speed of light. 60 Miles per hour = 26.8224 Meters per second 26.8224/299792458 = 8.946989587×10^-8(m/s)/c (8.946989587×10^-8)^2 = 8.00486227x10^-15 1-8.00486227x10^-15 = 2.00486227x10^-15 sqrt(2.00486227x10^-15) = 4.477568838x10^-8 gamma = 4.477568838x10^-8 And now I'm totaly lost. How is time measured? What do I multiply gamma with to get an actual # of how much of a second the clock is off? and/or do I have no idea what I am doing?