I have recently been on the other side of this argument for specific case. In our case we (users of our API) are to specify date ranges, representing a list of

I have recently been on the other side of this argument for specific case. In our case we (users of our API) are to specify date ranges, representing a list of partitions. So we are not counting nights between dates, but rather a set of daily or hourly buckets. Here (maybe even only here) I argue that inclusive ranges feel more intuitive. I find it much more intuitive to represent the 1st 7 days of January as ['2022-01-01', '2022-01-07'] compared to ['2022-01-01', '2022-01-08'). Another very common example is to specify the last 7 days (incl 'today') in which case I find [today().minusDays(6), today()] to be a clearer representation than ['today().minusDays(6)', 'today().plusDays(1)')