From 734fd137105210885492b73ad8d5de4fdf054891 Mon Sep 17 00:00:00 2001
From: Thomas Li <47963215+lithomas1@users.noreply.github.com>
Date: Tue, 10 May 2022 18:27:10 -0700
Subject: [PATCH 1/2] CLN: DatetimeTZBlock don't override values_for_json

---
 pandas/core/internals/blocks.py | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/pandas/core/internals/blocks.py b/pandas/core/internals/blocks.py
index c8430a9266ea5..29f3f884566d0 100644
--- a/pandas/core/internals/blocks.py
+++ b/pandas/core/internals/blocks.py
@@ -1986,12 +1986,10 @@ class DatetimeTZBlock(DatetimeLikeBlock):
     is_extension = True
     _validate_ndim = True
     _can_consolidate = False
-
-    def values_for_json(self) -> np.ndarray:
-        # force dt64tz to go through object dtype
-        # tz info will be lost when converting to
-        # dt64 which is naive
-        return self.values.astype(object)
+    
+    # Don't use values_for_json from DatetimeLikeBlock since it is
+    # an invalid optimization here(drop the tz)
+    values_for_json = NDArrayBackedExtensionBlock.values_for_json
 
 
 class ObjectBlock(NumpyBlock):

From 4dca662d437163ec5ec7c403f2ff8a6ba380e50f Mon Sep 17 00:00:00 2001
From: Thomas Li <47963215+lithomas1@users.noreply.github.com>
Date: Tue, 10 May 2022 18:27:50 -0700
Subject: [PATCH 2/2] Update blocks.py

---
 pandas/core/internals/blocks.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pandas/core/internals/blocks.py b/pandas/core/internals/blocks.py
index 29f3f884566d0..82daaa2843091 100644
--- a/pandas/core/internals/blocks.py
+++ b/pandas/core/internals/blocks.py
@@ -1986,7 +1986,7 @@ class DatetimeTZBlock(DatetimeLikeBlock):
     is_extension = True
     _validate_ndim = True
     _can_consolidate = False
-    
+
     # Don't use values_for_json from DatetimeLikeBlock since it is
     # an invalid optimization here(drop the tz)
     values_for_json = NDArrayBackedExtensionBlock.values_for_json