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https://issues.apache.org/jira/browse/ARROW-14822?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17455171#comment-17455171
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Rok Mihevc commented on ARROW-14822:
------------------------------------

[~jorisvandenbossche] I plan to make separate kernels for round/floor/ceil.
It appears rounding in pandas (and I suspect in lubridate) is done to time 
intervals, which seems fine for intervals of day and smaller. However it would 
be nice to round to week/month/etc where the result would be "calendar rounded" 
instead of "interval rounded". So I'm trying to set that up, please stop me if 
you disagree.

> [C++] Implement floor/ceil/round for temporal objects
> -----------------------------------------------------
>
>                 Key: ARROW-14822
>                 URL: https://issues.apache.org/jira/browse/ARROW-14822
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: C++
>            Reporter: Nicola Crane
>            Assignee: Rok Mihevc
>            Priority: Minor
>              Labels: kernel, pull-request-available
>          Time Spent: 1h 10m
>  Remaining Estimate: 0h
>
> This would enable us to implement the linked R ticket



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