首先引用datetime包
\usepackage[level]{datetime} %raise make ordinal st,nd,rd,th appear as superscript
%level make ordinal st,nd,rd,th appear level with rest of text
\newdateformat{ukdate}{\ordinaldate{\THEDAY} \monthname[\THEMONTH] \THEYEAR}%日月年
\date{\ukdate\today}%插入當前日期