n the system used to compute the lunar conjunction times. The 24 solar terms are computed in the same way as the Zhuanxu calendar, one of the <a href="guliuli.html">ancient six calendars</a>. The intercalary (leap) months are inserted following a 3-3-3-2-3-3-2 pattern in a 19-year (<i>zh&#257;ng</i>) cycle discussed on our <a href="guliuli.html#runyu">ancient six calendars page</a>. According to L&#464;, this is just an empirical rule used at that time and has nothing to do with the 24 solar terms, a viewpo