Iwerzhon opened a new issue, #43778: URL: https://github.com/apache/arrow/issues/43778
### Describe the bug, including details regarding any error messages, version, and platform. Sometimes (based on the start_date/end_date value), some days are missing when splitting a range of dates using `span_range` with `frame=month` Doc: https://arrow.readthedocs.io/en/latest/api-guide.html#arrow.arrow.Arrow.span_range Reproduction ``` import arrow start_date = arrow.get("2023-01-31T00:00:00+02:00") end_date = arrow.get("2024-08-20T16:08:09.538605+02:00") [ [start.isoformat(), end.isoformat()] for start, end in arrow.Arrow.span_range("month", start_date.datetime, end_date.datetime, exact=True) ] ``` We go from `2023-03-27T23:59:59` to `2023-03-31T00:00:00+02:00`, missing 3 days (2nd to 3rd value) We go from `2024-07-29T23:59:59` to `2024-07-31T00:00:00+02:00`, missing 1 day (last value) Note : - this issue may not occur with different dates - this issue does not occur when using `frame=months` instead of `frame=month` - this issue does not occur when not specifying `exact=True I am unsure of the difference between `month` and `months`, but I don't think this is the expected behavior? ### Component(s) Python -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@arrow.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
