Abstract: A children's timer device for assisting children in determining the difference between waking time and sleeping time is provided. The device comprises a housing having a viewing opening and a viewing cylinder rotatably mounted within the housing. The viewing cylinder has at least a first scenic image and a second scenic image with each scenic image alternatingly viewable through the viewing opening in the housing. A clock mechanism sets a predetermined time period for viewing at least the first scenic image wherein upon rotation of the viewing cylinder to display only the first scenic image through the viewing opening, the entire first scenic image remains viewable through the viewing opening for the duration of the predetermined time period such that upon expiration of the predetermined time period, the viewing cylinder begins rotation and rotates until only the second scenic image is viewable through the viewing opening.