ft to right, calendars in the three regions divided by the two red lines are calculated using epochs A, B and C. The vertical axis is the time lag of the calendrical conjunction<br /> 
<span class="nowrap">JD<sub>calendrical</sub></span> - <span class="nowrap">JD<sub>astronomical</sub></span> in units of days.<sup><a href="QinHanCalendars.html#fn5">fn5</a></sup></figcaption>
</figure>
    
<p>The oscillation seen in the figure is caused by the <i>p&#237;ngshu&#242;</i> rule, which only takes into account th