To get the phase shift in the usual unit, which is radian, use phi = timeDelta * f * 2pi . Generally, the phase shift is the x-distance between (0.0, 0.0) and the next zero-crossing to the left, given in an angle, usually in radian, sometimes also given in degree.
How do you calculate shift phase?
Using Phase Shift Formula, F(x) = Asin(Bx−C) + D.
How do you find the shift of a sine graph?
The easiest way to determine horizontal shift is to determine by how many units the "starting point" (0,0) of a standard sine curve, y = sin(x), has moved to the right or left. Horizontal shifts can be applied to all trigonometric functions.