Meridian Clock's Coupled Channels
We could say that at any given point in time there is not only one channel open, but the coupled channel according to the meridian clock is always open for a timely treatment as well.
The two opposite channels always have an opposite yin-yang-qualification. That is to say, if the open channel has a yang qualification, then the noon midnight connected channel is qualified by yin and vice versa. Therefore we can say: Due to the noon-midnight law we have access to a yang channel as well as to a yin channel at any point in time.