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6 changes: 5 additions & 1 deletion pandas/core/arrays/arrow/array.py
Original file line number Diff line number Diff line change
Expand Up @@ -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

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