1. You can achieve this by using showWorkHours option, available in the Q3 2013 BETA release.
2. This is not supported out-of-the-box. However, you could implement similar functionality using the dataBound event to show custom hints if there are events outside of the selected time frame. Such approach is demonstrated in this jsbin sample.
Join us on our journey to create the world's most complete HTML 5 UI Framework - download Kendo UI