clarity of concept

The "stuttering" is because the example is a bit simple.

The first "org.freedesktop.timedate1" is the destination process, and the "org.freedesktop." part is a java-style reverse-dns prefix to handle the fact that the namespace in dbus is global.

The "/org/freedesktop/timedate1" is the object in this process that we wish to talk to. Since this service typically only has one interesting object and we need a standardized place for it we use something similar to the destination name. It could technically be "/", but then it would be hard for the timeddate1 service to also serve other objects.

The second "org.freedesktop.timedate1" is the interface name we wish to call a method on. An object in dbus may implement several interfaces, and in this case it probably also implements the standard "org.freedesktop.DBus.Properties" and "org.freedesktop.DBus.Introspectable" interfaces too. Think of this as a namespace for the method name argument.

In this case we're just calling the "normal" methods on the timedate service, but we need to name that something and typically it gets the same name as the destination.