ENH: support of pandas.DataFrame.hist for datetime data

Author: onshek

pandas/core/generic.py

@@ -5438,6 +5438,9 @@ def _get_numeric_data(self):
     def _get_bool_data(self):
         return self._constructor(self._mgr.get_bool_data()).__finalize__(self)
 
+    def _get_numeric_or_datetime_data(self):
+        return self._constructor(self._mgr.get_numeric_or_datetime_data()).__finalize__(self)
+
     # ----------------------------------------------------------------------
     # Internal Interface Methods
 

pandas/core/internals/managers.py

@@ -693,6 +693,15 @@ def get_numeric_data(self, copy: bool = False) -> "BlockManager":
         """
         return self._combine([b for b in self.blocks if b.is_numeric], copy)
 
+    def get_numeric_or_datetime_data(self, copy: bool = False) -> "BlockManager":
+        """
+        Parameters
+        ----------
+        copy : bool, default False
+            Whether to copy the blocks
+        """
+        return self._combine([b for b in self.blocks if b.is_numeric or b.is_datetime], copy)
+
     def _combine(self: T, blocks: List[Block], copy: bool = True) -> T:
         """ return a new manager with the blocks """
         if len(blocks) == 0:

pandas/plotting/_matplotlib/hist.py

@@ -417,7 +417,8 @@ def hist_frame(
         if not isinstance(column, (list, np.ndarray, ABCIndexClass)):
             column = [column]
         data = data[column]
-    data = data._get_numeric_data()
+    # GH32590
+    data = data._get_numeric_or_datetime_data()
     naxes = len(data.columns)
 
     if naxes == 0: