Pick a simple outside object as your subject and photograph it at different times of the day from the same position using the same lens and f stop. This may sound like a tedious exercise but you can learn a lot from it by closely observing the differences in your image. The light at sunrise has a very different quality than the noon light and it is absolutely essential for every serious photographer to do this exercise and experience first hand the difference the light makes on any given subject.
I went out and photographed this landscape rock this morning at around 7:00 AM. I picked f8 for this exercise. Using ISO 100 my exposure time was 1/25sec. The sun was barely out and you see the warm light in the rock. There are hardly any shadows in this image.
As always, enjoy and study the light!