您可以使用它来得到给定的日期究竟是星期几，并得到相对于当前日期的相对日期。

You can use it to get the day of the week on which a given date falls and to get dates relative to the current date.

youdao

It's also called historical criticism, because its ultimate goal and purpose was not just to isolate the sources, but to arrange them according to relative dates as far as they might be ascertained, and then to chart changes in Israel's religion.

还被叫作历史批判学，因为其最终目标,不仅仅是分离材料，而且要根据可以确定下来的,相对日期对其进行整理，然后追踪以色列的,宗教变更。

耶鲁公开课 - 旧约导论课程节选