Weird. I have found this to basically never be the case. Even some of the worst managers I've had have supported learning on the clock, through reading materials, tutorials, or otherwise. I've even had some jobs where learning time was a regularly slated part of my work week, and in some cases was allowed to take classes which cut into work a bit. My current employer has a library of technical books and educational material that any of us are free to rent and learn as we go.