On 28th April 2013 at 1.57 p.m. Planet Saturn would be at Opposition to Sun i.e. it will be directly opposite to Sun from our viewpoint on Earth.
In other words during course its journey around Sun Planet Earth will have a Faceoff with Planet Saturn as it would leave behind its neighbor in the celestial race as days pass on. Due to opposition Planet Saturn will be closest, biggest (from Telescope) & brightest (as can be observed by anyone) it can get in year 2013 on 28th April 2013.
Whereas at midnight one can see close to Zenith i.e. above his head while in the morning it can be spotted between West and South West Direction.