How do I reset my landscape light timer?

How do I reset my landscape light timer?

https://www.youtube.com/watch?v=lYuMoCTPyls

How do you set a timer for outside lights?

https://www.youtube.com/watch?v=KUO2dtGAe3c

How do I change my outdoor lights to turn on automatically at night?

https://www.youtube.com/watch?v=xK5RucPdozA