 Knowing that the clock "K" remains inertial (stationary), the total accumulated proper time Δ"τ" of clock K' will be given by the integral function of coordinate time Δ"t"
where "v"("t") is the "coordinate velocity" of clock K' as a function of "t" according to clock "K", and, e.g.during phase 1, given by

This integral can be calculated for the 6 phases