I’m looking for a decent WPF or Winform time range selector, much like a home central heating system, where a time range is selectable.
http://lhill.com.au/l%20hill%20web%20page%20pictures/time%20clock%202.jpg
Is there any GUI libraries or examples available to fulfill this need?
What you are looking for is called “radial” gauge controls.
If you search on google you will find lots of controls for Winforms and WPF.