From 3a5e26bec1ca4eed1fdf96b46833bf521755069d Mon Sep 17 00:00:00 2001 From: ahalsey Date: Tue, 25 Nov 2025 05:48:15 -0500 Subject: [PATCH] #63170 - fix array.py Update _reduce_calc to consistently return the correct datetime format as mentioned in issue 63170 --- pandas/core/arrays/arrow/array.py | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/pandas/core/arrays/arrow/array.py b/pandas/core/arrays/arrow/array.py index aa224ee571d70..5395852c26fe7 100644 --- a/pandas/core/arrays/arrow/array.py +++ b/pandas/core/arrays/arrow/array.py @@ -2148,7 +2148,11 @@ def _reduce_calc( if pc.is_null(pa_result).as_py(): return self.dtype.na_value elif isinstance(pa_result, pa.Scalar): - return pa_result.as_py() + result = pa_result.as_py() + # verify duration always returns pd.Timedelta + if pa.types.is_duration(pa_result.type) and isinstance(result, timedelta): + return pd.Timedelta(result) + return result else: return pa_result