Simple Harmonic Motion

A simple harmonic oscillator has an amplitude \(A\) and time period \(6 \pi\) second. Assuming the oscillation starts from its mean position, the time required by it to travel from \(x=\) A to \(x=\frac{\sqrt{3}}{2}\) A will be \(\frac{\pi}{x} \mathrm{~s}\), where \(x=\) _________.