date on which the claim becomes due

例句：

1. 1. I'll be back by the 20th of June.
   我将在6月20日回来。
2. 2. They have a date for the wedding next month.
   他们下个月有婚礼的日期。
3. 3. The date of the meeting has been set for tomorrow.
   会议的日期已经定在明天了。