Riemann Zeta function (functional equation)

Question

Can someone confirm the validity of the following identity:

$\zeta(s)=(\frac{y}{2\pi})^{0.5-x}e^{-i(y\ln(\frac{y}{2\pi})-y-\frac{\pi}{4})}\zeta(1-s)$ where $s=x+iy$ and $y>0$.