From fa5a1009a3ad2cc8f9af0a7eff92bd75a8ab984b Mon Sep 17 00:00:00 2001
From: Matthew Roeschke <10647082+mroeschke@users.noreply.github.com>
Date: Tue, 5 Dec 2023 13:29:12 -1000
Subject: [PATCH] Backport PR #56294: BUG: Series(strings,
 dtype=ArrowDtype[timestamp]) raising

---
 doc/source/whatsnew/v2.1.4.rst       |  1 +
 pandas/core/arrays/arrow/array.py    |  2 +-
 pandas/tests/extension/test_arrow.py | 10 ++++++++++
 3 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/doc/source/whatsnew/v2.1.4.rst b/doc/source/whatsnew/v2.1.4.rst
index 3caeef3d26ead..362ee81bbdc09 100644
--- a/doc/source/whatsnew/v2.1.4.rst
+++ b/doc/source/whatsnew/v2.1.4.rst
@@ -22,6 +22,7 @@ Fixed regressions
 Bug fixes
 ~~~~~~~~~
 - Bug in :class:`Series` constructor raising DeprecationWarning when ``index`` is a list of :class:`Series` (:issue:`55228`)
+- Bug in :class:`Series` when trying to cast date-like string inputs to :class:`ArrowDtype` of ``pyarrow.timestamp`` (:issue:`56266`)
 - Bug in :meth:`DataFrame.apply` where passing ``raw=True`` ignored ``args`` passed to the applied function (:issue:`55753`)
 - Bug in :meth:`Index.__getitem__` returning wrong result for Arrow dtypes and negative stepsize (:issue:`55832`)
 - Fixed bug in :func:`to_numeric` converting to extension dtype for ``string[pyarrow_numpy]`` dtype (:issue:`56179`)
diff --git a/pandas/core/arrays/arrow/array.py b/pandas/core/arrays/arrow/array.py
index a08f3ba44f417..bd94f7b0de956 100644
--- a/pandas/core/arrays/arrow/array.py
+++ b/pandas/core/arrays/arrow/array.py
@@ -462,7 +462,7 @@ def _box_pa_array(
 
             try:
                 pa_array = pa.array(value, type=pa_type, from_pandas=True)
-            except pa.ArrowInvalid:
+            except (pa.ArrowInvalid, pa.ArrowTypeError):
                 # GH50430: let pyarrow infer type, then cast
                 pa_array = pa.array(value, from_pandas=True)
 
diff --git a/pandas/tests/extension/test_arrow.py b/pandas/tests/extension/test_arrow.py
index 61474aa94d1c8..44e3a99a65de7 100644
--- a/pandas/tests/extension/test_arrow.py
+++ b/pandas/tests/extension/test_arrow.py
@@ -3100,3 +3100,13 @@ def test_arrow_floordiv():
     expected = pd.Series([-2], dtype="int64[pyarrow]")
     result = a // b
     tm.assert_series_equal(result, expected)
+
+
+def test_string_to_datetime_parsing_cast():
+    # GH 56266
+    string_dates = ["2020-01-01 04:30:00", "2020-01-02 00:00:00", "2020-01-03 00:00:00"]
+    result = pd.Series(string_dates, dtype="timestamp[ns][pyarrow]")
+    expected = pd.Series(
+        ArrowExtensionArray(pa.array(pd.to_datetime(string_dates), from_pandas=True))
+    )
+    tm.assert_series_equal(result, expected)