Basically, the template shows how to add real-world time-based animation. Based on the time of the day, you can load a specific scene. That same idea could be used to load a timeline, or go to a specific point in a timeline. In this example, it's a city scene that changes color... Morning, Afternoon, Evening, and Nite. There's also a corresponding greeting.
Recently, macOS added a lot of timely features... Dark Mode, Night Shift, and Dynamic Desktop. Tumult is even expanding that with their "Nightly" app...
...with a few conditionals and a timer, your Hype project can also react to the time of the day.