Constant speed of light and uniformed succession of time invalidates time dilation:

• The wave moves a distance of one wavelength (λ) in one period of time (T).
• Since, speed = distance/time.
• The speed (v) of a wave is wavelength/period (v = λ/T).
• For electromagnetic waves, c = λ/T.
• Since speed of light is constant (c), succession of time needs to be uniformed. 
• Note Δt = T/360 (for 1° phase shift)
• Explanation for the post above here. 

Also refer the image below, click to enlarge.

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