Allow unified_strdate to handle "*3rd" in date strings.
diff --git a/test/test_utils.py b/test/test_utils.py
index 3920542bb43..0db37d9d88e 100644
--- a/test/test_utils.py
+++ b/test/test_utils.py
@@ -340,6 +340,8 @@ def test_unified_dates(self):
         self.assertEqual(unified_strdate('July 15th, 2013'), '20130715')
         self.assertEqual(unified_strdate('September 1st, 2013'), '20130901')
         self.assertEqual(unified_strdate('Sep 2nd, 2013'), '20130902')
+        self.assertEqual(unified_strdate('November 3rd, 2019'), '20191103')
+        self.assertEqual(unified_strdate('October 23rd, 2005'), '20051023')
 
     def test_unified_timestamps(self):
         self.assertEqual(unified_timestamp('December 21, 2010'), 1292889600)
diff --git a/youtube_dl/utils.py b/youtube_dl/utils.py
index aed988b884b..0d30075aa1d 100644
--- a/youtube_dl/utils.py
+++ b/youtube_dl/utils.py
@@ -1718,13 +1718,16 @@ def random_user_agent():
     '%B %d %Y',
     '%B %dst %Y',
     '%B %dnd %Y',
+    '%B %drd %Y',
     '%B %dth %Y',
     '%b %d %Y',
     '%b %dst %Y',
     '%b %dnd %Y',
+    '%b %drd %Y',
     '%b %dth %Y',
     '%b %dst %Y %I:%M',
     '%b %dnd %Y %I:%M',
+    '%b %drd %Y %I:%M',
     '%b %dth %Y %I:%M',
     '%Y %m %d',
     '%Y-%m-%d',

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### Description of your *pull request* and other information

unified_strdate was missing "*rd" for for "3rd" and "23rd". It did have "*st", "*nd", and "*th".
Fixes #23197
