How to get clock on phone when it’s standing vertically on its side

if your phone is on its side (Landscape view) in a stand how do you get it to show a large clock I’ve seen screenshots of iPhone sideways like (landscape mode) and it looks like a big digital clock is there a setting I need to turn on or dose it need to be in a wireless charging dock and be sideways (Landscape view) to work This is a picture of it