该解决方案取决于数据的实际存储方式，例如，如果您使用的是数据库，则***的选择是SQL查询，另一方面，如果您只有一个Date值数组，则可以编写适当的算法(例如，对值进行排序以及找到间隔的上下限).

The solution depends on how the data is actually stored, for instance if you are using a database, then the best option would be a SQL query, on the other hand if you have just an array of Date values then you have to write the appropriate algo (e.g. order the values and the find lower and upper limits of the interval).