Rotate 3D Object 90 Degrees around the Z-Axis


I need to rotate my object aroiund the z-Axis for exactly 90 Degrees. I have an object in the XY Axis, but its facing the wrong diretion, means the Y-Axis needs to be my new X-Axis.

I used the transformation category but there i Can just manually rotate the Object and I dont know if it was exactly 90 degrees.

I appreciate any help.

Kind Regards

If you use Rotate and type 90 as the rotation angle then it will rotate exactly 90 degrees.