The "Golden Hour" - the first and last hour of sunlight during the day produces light that is softer and warmer in hue. Sunlight travels through more of the atmosphere, reducing its intensity, so that more of the illumination comes from the sky. More blue light is scattered, so that light from the Sun appears more reddish. The Sun's small angle with the horizon produces longer shadows. It's a favorite time for photographers to bring out the camera.