From 66e97032dd7d144ee9596330340ec9a4c98f01b4 Mon Sep 17 00:00:00 2001
From: Markgolzh <1134386961@qq.com>
Date: Mon, 20 Jul 2020 15:18:25 +0800
Subject: [PATCH 1/4] Update datetimes.py

change some issues be metioned at #35342
---
 pandas/core/arrays/datetimes.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pandas/core/arrays/datetimes.py b/pandas/core/arrays/datetimes.py
index d674b1c476d2c..0581bff0bf698 100644
--- a/pandas/core/arrays/datetimes.py
+++ b/pandas/core/arrays/datetimes.py
@@ -2398,6 +2398,7 @@ def generate_range(start=None, end=None, periods=None, offset=BDay()):
 
     elif end and not offset.is_on_offset(end):
         end = offset.rollback(end)
+        end = Timestamp(str(end).split(' ')[0] + ' 23:59:59')
 
     if periods is None and end < start and offset.n >= 0:
         end = None

From a1a4fe051d49149121819750d56c5b9739be70bb Mon Sep 17 00:00:00 2001
From: Markgolzh <1134386961@qq.com>
Date: Thu, 23 Jul 2020 14:19:42 +0800
Subject: [PATCH 2/4] fix date_range returns wrong output in some cases

change end time in generate_range function in datetimes file
---
 pandas/core/arrays/datetimes.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pandas/core/arrays/datetimes.py b/pandas/core/arrays/datetimes.py
index 0581bff0bf698..4b042cf2b33b2 100644
--- a/pandas/core/arrays/datetimes.py
+++ b/pandas/core/arrays/datetimes.py
@@ -2398,6 +2398,7 @@ def generate_range(start=None, end=None, periods=None, offset=BDay()):
 
     elif end and not offset.is_on_offset(end):
         end = offset.rollback(end)
+        # https://github.com/pandas-dev/pandas/issues/35342
         end = Timestamp(str(end).split(' ')[0] + ' 23:59:59')
 
     if periods is None and end < start and offset.n >= 0:

From 28eff6824c8df6d3d32a81d23b4ce69d9dce0986 Mon Sep 17 00:00:00 2001
From: Markgolzh <1134386961@qq.com>
Date: Thu, 23 Jul 2020 15:13:49 +0800
Subject: [PATCH 3/4] change comment before

fix issues be metioned at #35342
---
 pandas/core/arrays/datetimes.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pandas/core/arrays/datetimes.py b/pandas/core/arrays/datetimes.py
index 4b042cf2b33b2..39f563d777ea0 100644
--- a/pandas/core/arrays/datetimes.py
+++ b/pandas/core/arrays/datetimes.py
@@ -2398,7 +2398,7 @@ def generate_range(start=None, end=None, periods=None, offset=BDay()):
 
     elif end and not offset.is_on_offset(end):
         end = offset.rollback(end)
-        # https://github.com/pandas-dev/pandas/issues/35342
+        # fix issues be metioned at #35342
         end = Timestamp(str(end).split(' ')[0] + ' 23:59:59')
 
     if periods is None and end < start and offset.n >= 0:

From 1de42935532af56dab363c8b707f346ebc00c930 Mon Sep 17 00:00:00 2001
From: Markgolzh <1134386961@qq.com>
Date: Fri, 24 Jul 2020 11:29:43 +0800
Subject: [PATCH 4/4] delete comment

---
 pandas/core/arrays/datetimes.py | 1 -
 1 file changed, 1 deletion(-)

diff --git a/pandas/core/arrays/datetimes.py b/pandas/core/arrays/datetimes.py
index 39f563d777ea0..0581bff0bf698 100644
--- a/pandas/core/arrays/datetimes.py
+++ b/pandas/core/arrays/datetimes.py
@@ -2398,7 +2398,6 @@ def generate_range(start=None, end=None, periods=None, offset=BDay()):
 
     elif end and not offset.is_on_offset(end):
         end = offset.rollback(end)
-        # fix issues be metioned at #35342
         end = Timestamp(str(end).split(' ')[0] + ' 23:59:59')
 
     if periods is None and end < start and offset.n >= 0: