Two families = Two different worlds
The evening time passed.
Time could not be considered as something physical but as a unit of measurement that intelligent living beings used in order to give structure to their lives. Therefore, depending on the experiences one was going through at a given moment, time could seem to run faster or slower.
For example, when a person was having a moment of fun or joy, time would most likely pass extremely fast to the point of losing track of it. However, if the same person was going through a moment of boredom, pain, or fear, time was likely to move extremely slowly to the point in which a second could feel like forever.
Therefore, depending on the life and experiences that each survivor within the human establishment under the name Chinese Renaissance had lived during today's evening, time could have passed fast, normal, or extremely slow.