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yep and in fact without accounting for it would cause all sorts of problems.
"These days, when atomic clocks are transported by air from Washington, D.C., to Boulder, Colorado, as part of the regular maintenance of the United States time standard, corrections are made for the time dilation based on a log of the flight with records of ground speed and elapsed time. Similarly, in the satellitebased GPS that represents the current state of the art in navigation, corrections are made for the effect of time dilation on the atomic clocks orbiting in satellites whose time signals form the basis for the system.
If time dilation were somehow turned off, not only would particle physics experiments shut down, but the most advanced navigational systems for both military and civilian needs would fail to operate. Aircraft and missiles, ships and submarines, trucks and trains, and hikers and hunters with their consumer-market GPS systems would literally lose their bearings"
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