lass="nowrap">JD<sub>1</sub></span> to do the calculation below.<br />
L = (JD<sub>Z5</sub> - JD<sub>1</sub>)/(29 + 499/940) = 5 + 9189/222072, <br />
lunation fraction of Z5 =  9189/222072 &approx; 0.8/19.</p>
    
    <br />
<sect id="conjDiff">Time Lags of the Calendrical Conjunctions</sect>
    
<p>It is well known that the conjunction times determined by calendars in the Qin and Early Han dynasties were later than the astronomical conjunction times. The average of the time differences was about one day