"He misread the date on the letter; it was December 17th, not 18th."

"他看上的日期,那是十一月十七,不是十八日。"

The election’s on the eighteenth, so it’s all go for the next three weeks.

选举在十八日举行，以后的三个星期会非常忙碌。

We commence building on March 18th.

我们于三月十八日开工。