On Nov 16, 9:23*pm, "Androcles"
wrote:

If the clocks do NOT read the same count (with drift allowed) due to
time dilation then NIST got it wrong, the speed of light cannot be a
universal constant.

No, because there's also Lorenz contraction, so from the viewpoint of
the standing-still reference frame, light moving around inside the
clock to make it tick may have moved a different distance. One thing
Special Relativity does NOT do is contradict itself.

John Savard