BUG: retain tz in to_records (pandas-dev#32535)

* BUG: retain tz in to_records

* whatsnew

* woops

* comment

Author: jbrockmendel

doc/source/whatsnew/v1.1.0.rst

@@ -388,6 +388,7 @@ Other
   instead of ``TypeError: Can only append a Series if ignore_index=True or if the Series has a name`` (:issue:`30871`)
 - Set operations on an object-dtype :class:`Index` now always return object-dtype results (:issue:`31401`)
 - Bug in :meth:`AbstractHolidayCalendar.holidays` when no rules were defined (:issue:`31415`)
+- Bug in :meth:`DataFrame.to_records` incorrectly losing timezone information in timezone-aware ``datetime64`` columns (:issue:`32535`)
 
 .. ---------------------------------------------------------------------------
 

pandas/core/frame.py

@@ -1773,7 +1773,9 @@ def to_records(
             else:
                 ix_vals = [self.index.values]
 
-            arrays = ix_vals + [self[c]._internal_get_values() for c in self.columns]
+            arrays = ix_vals + [
+                np.asarray(self.iloc[:, i]) for i in range(len(self.columns))
+            ]
 
             count = 0
             index_names = list(self.index.names)
@@ -1788,7 +1790,7 @@ def to_records(
 
             names = [str(name) for name in itertools.chain(index_names, self.columns)]
         else:
-            arrays = [self[c]._internal_get_values() for c in self.columns]
+            arrays = [np.asarray(self.iloc[:, i]) for i in range(len(self.columns))]
             names = [str(c) for c in self.columns]
             index_names = []
 

pandas/tests/frame/methods/test_to_records.py

@@ -3,7 +3,14 @@
 import numpy as np
 import pytest
 
-from pandas import CategoricalDtype, DataFrame, MultiIndex, Series, date_range
+from pandas import (
+    CategoricalDtype,
+    DataFrame,
+    MultiIndex,
+    Series,
+    Timestamp,
+    date_range,
+)
 import pandas._testing as tm
 
 
@@ -18,6 +25,17 @@ def test_to_records_dt64(self):
         result = df.to_records()["index"][0]
         assert expected == result
 
+    def test_to_records_dt64tz_column(self):
+        # GH#32535 dont less tz in to_records
+        df = DataFrame({"A": date_range("2012-01-01", "2012-01-02", tz="US/Eastern")})
+
+        result = df.to_records()
+
+        assert result.dtype["A"] == object
+        val = result[0][1]
+        assert isinstance(val, Timestamp)
+        assert val == df.loc[0, "A"]
+
     def test_to_records_with_multindex(self):
         # GH#3189
         index = [