moon，month，Luna；

[例句] 俱乐部已经把会议日期改到1月22号，星期六。 The club has moved its meeting to Saturday, January 22nd.

[例句] 他是1月9号到的，蓬头垢面，疲惫不堪。 He arrived on January 9, disheveled and much the worse for wear.