diff --git a/django/conf/global_settings.py b/django/conf/global_settings.py
index c1a4ac6938..82acca010a 100644
--- a/django/conf/global_settings.py
+++ b/django/conf/global_settings.py
@@ -369,11 +369,17 @@ SHORT_DATETIME_FORMAT = 'm/d/Y P'
 # https://docs.python.org/library/datetime.html#strftime-behavior
 # * Note that these format strings are different from the ones to display dates
 DATE_INPUT_FORMATS = [
-    '%Y-%m-%d', '%m/%d/%Y', '%m/%d/%y',  # '2006-10-25', '10/25/2006', '10/25/06'
-    '%b %d %Y', '%b %d, %Y',             # 'Oct 25 2006', 'Oct 25, 2006'
-    '%d %b %Y', '%d %b, %Y',             # '25 Oct 2006', '25 Oct, 2006'
-    '%B %d %Y', '%B %d, %Y',             # 'October 25 2006', 'October 25, 2006'
-    '%d %B %Y', '%d %B, %Y',             # '25 October 2006', '25 October, 2006'
+    '%Y-%m-%d',  # '2006-10-25'
+    '%m/%d/%Y',  # '10/25/2006'
+    '%m/%d/%y',  # '10/25/06'
+    '%b %d %Y',  # 'Oct 25 2006'
+    '%b %d, %Y',  # 'Oct 25, 2006'
+    '%d %b %Y',  # '25 Oct 2006'
+    '%d %b, %Y',  # '25 Oct, 2006'
+    '%B %d %Y',  # 'October 25 2006'
+    '%B %d, %Y',  # 'October 25, 2006'
+    '%d %B %Y',  # '25 October 2006'
+    '%d %B, %Y',  # '25 October, 2006'
 ]
 
 # Default formats to be used when parsing times from input boxes, in order
diff --git a/django/conf/locale/ca/formats.py b/django/conf/locale/ca/formats.py
index 746d08fdd2..f6b2957d11 100644
--- a/django/conf/locale/ca/formats.py
+++ b/django/conf/locale/ca/formats.py
@@ -14,8 +14,8 @@ FIRST_DAY_OF_WEEK = 1  # Monday
 # The *_INPUT_FORMATS strings use the Python strftime format syntax,
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 DATE_INPUT_FORMATS = [
-    # '31/12/2009', '31/12/09'
-    '%d/%m/%Y', '%d/%m/%y'
+    '%d/%m/%Y',  # '31/12/2009'
+    '%d/%m/%y',  # '31/12/09'
 ]
 DATETIME_INPUT_FORMATS = [
     '%d/%m/%Y %H:%M:%S',
diff --git a/django/conf/locale/cs/formats.py b/django/conf/locale/cs/formats.py
index c01af8b7d7..5c6d8f9c0f 100644
--- a/django/conf/locale/cs/formats.py
+++ b/django/conf/locale/cs/formats.py
@@ -14,9 +14,12 @@ FIRST_DAY_OF_WEEK = 1  # Monday
 # The *_INPUT_FORMATS strings use the Python strftime format syntax,
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 DATE_INPUT_FORMATS = [
-    '%d.%m.%Y', '%d.%m.%y',     # '05.01.2006', '05.01.06'
-    '%d. %m. %Y', '%d. %m. %y',  # '5. 1. 2006', '5. 1. 06'
-    # '%d. %B %Y', '%d. %b. %Y',  # '25. October 2006', '25. Oct. 2006'
+    '%d.%m.%Y',  # '05.01.2006'
+    '%d.%m.%y',  # '05.01.06'
+    '%d. %m. %Y',  # '5. 1. 2006'
+    '%d. %m. %y',  # '5. 1. 06'
+    # "%d. %B %Y",  # '25. October 2006'
+    # "%d. %b. %Y",  # '25. Oct. 2006'
 ]
 # Kept ISO formats as one is in first position
 TIME_INPUT_FORMATS = [
diff --git a/django/conf/locale/cy/formats.py b/django/conf/locale/cy/formats.py
index db40cabfa6..bcdcb111df 100644
--- a/django/conf/locale/cy/formats.py
+++ b/django/conf/locale/cy/formats.py
@@ -14,7 +14,8 @@ FIRST_DAY_OF_WEEK = 1                   # 'Dydd Llun'
 # The *_INPUT_FORMATS strings use the Python strftime format syntax,
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 DATE_INPUT_FORMATS = [
-    '%d/%m/%Y', '%d/%m/%y',             # '25/10/2006', '25/10/06'
+    '%d/%m/%Y',  # '25/10/2006'
+    '%d/%m/%y',  # '25/10/06'
 ]
 DATETIME_INPUT_FORMATS = [
     '%Y-%m-%d %H:%M:%S',                # '2006-10-25 14:30:59'
diff --git a/django/conf/locale/de/formats.py b/django/conf/locale/de/formats.py
index 7bd5e0582b..65d58b5f2b 100644
--- a/django/conf/locale/de/formats.py
+++ b/django/conf/locale/de/formats.py
@@ -14,8 +14,10 @@ FIRST_DAY_OF_WEEK = 1  # Monday
 # The *_INPUT_FORMATS strings use the Python strftime format syntax,
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 DATE_INPUT_FORMATS = [
-    '%d.%m.%Y', '%d.%m.%y',     # '25.10.2006', '25.10.06'
-    # '%d. %B %Y', '%d. %b. %Y',  # '25. October 2006', '25. Oct. 2006'
+    '%d.%m.%Y',  # '25.10.2006'
+    '%d.%m.%y',  # '25.10.06'
+    # "%d. %B %Y",  # '25. October 2006'
+    # "%d. %b. %Y",  # '25. Oct. 2006'
 ]
 DATETIME_INPUT_FORMATS = [
     '%d.%m.%Y %H:%M:%S',    # '25.10.2006 14:30:59'
diff --git a/django/conf/locale/de_CH/formats.py b/django/conf/locale/de_CH/formats.py
index 59a9fcb0df..9ee69120c8 100644
--- a/django/conf/locale/de_CH/formats.py
+++ b/django/conf/locale/de_CH/formats.py
@@ -14,8 +14,10 @@ FIRST_DAY_OF_WEEK = 1  # Monday
 # The *_INPUT_FORMATS strings use the Python strftime format syntax,
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 DATE_INPUT_FORMATS = [
-    '%d.%m.%Y', '%d.%m.%y',     # '25.10.2006', '25.10.06'
-    # '%d. %B %Y', '%d. %b. %Y',  # '25. October 2006', '25. Oct. 2006'
+    '%d.%m.%Y',  # '25.10.2006'
+    '%d.%m.%y',  # '25.10.06'
+    # "%d. %B %Y",  # '25. October 2006'
+    # "%d. %b. %Y",  # '25. Oct. 2006'
 ]
 DATETIME_INPUT_FORMATS = [
     '%d.%m.%Y %H:%M:%S',    # '25.10.2006 14:30:59'
diff --git a/django/conf/locale/el/formats.py b/django/conf/locale/el/formats.py
index 8d3175a72e..7aa53a0f1a 100644
--- a/django/conf/locale/el/formats.py
+++ b/django/conf/locale/el/formats.py
@@ -14,7 +14,9 @@ FIRST_DAY_OF_WEEK = 0  # Sunday
 # The *_INPUT_FORMATS strings use the Python strftime format syntax,
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 DATE_INPUT_FORMATS = [
-    '%d/%m/%Y', '%d/%m/%y', '%Y-%m-%d',  # '25/10/2006', '25/10/06', '2006-10-25',
+    '%d/%m/%Y',  # '25/10/2006'
+    '%d/%m/%y',  # '25/10/06'
+    '%Y-%m-%d',  # '2006-10-25'
 ]
 DATETIME_INPUT_FORMATS = [
     '%d/%m/%Y %H:%M:%S',     # '25/10/2006 14:30:59'
diff --git a/django/conf/locale/en/formats.py b/django/conf/locale/en/formats.py
index f5af6509c6..884deff17e 100644
--- a/django/conf/locale/en/formats.py
+++ b/django/conf/locale/en/formats.py
@@ -27,11 +27,17 @@ FIRST_DAY_OF_WEEK = 0
 # Note that these format strings are different from the ones to display dates.
 # Kept ISO formats as they are in first position
 DATE_INPUT_FORMATS = [
-    '%Y-%m-%d', '%m/%d/%Y', '%m/%d/%y',  # '2006-10-25', '10/25/2006', '10/25/06'
-    '%b %d %Y', '%b %d, %Y',             # 'Oct 25 2006', 'Oct 25, 2006'
-    '%d %b %Y', '%d %b, %Y',             # '25 Oct 2006', '25 Oct, 2006'
-    '%B %d %Y', '%B %d, %Y',             # 'October 25 2006', 'October 25, 2006'
-    '%d %B %Y', '%d %B, %Y',             # '25 October 2006', '25 October, 2006'
+    '%Y-%m-%d',  # '2006-10-25'
+    '%m/%d/%Y',  # '10/25/2006'
+    '%m/%d/%y',  # '10/25/06'
+    '%b %d %Y',  # 'Oct 25 2006'
+    '%b %d, %Y',  # 'Oct 25, 2006'
+    '%d %b %Y',  # '25 Oct 2006'
+    '%d %b, %Y',  # '25 Oct, 2006'
+    '%B %d %Y',  # 'October 25 2006'
+    '%B %d, %Y',  # 'October 25, 2006'
+    '%d %B %Y',  # '25 October 2006'
+    '%d %B, %Y',  # '25 October, 2006'
 ]
 DATETIME_INPUT_FORMATS = [
     '%Y-%m-%d %H:%M:%S',     # '2006-10-25 14:30:59'
diff --git a/django/conf/locale/en_AU/formats.py b/django/conf/locale/en_AU/formats.py
index 310577cbd4..d6a3b7235d 100644
--- a/django/conf/locale/en_AU/formats.py
+++ b/django/conf/locale/en_AU/formats.py
@@ -14,11 +14,16 @@ FIRST_DAY_OF_WEEK = 0                   # Sunday
 # The *_INPUT_FORMATS strings use the Python strftime format syntax,
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 DATE_INPUT_FORMATS = [
-    '%d/%m/%Y', '%d/%m/%y',             # '25/10/2006', '25/10/06'
-    # '%b %d %Y', '%b %d, %Y',          # 'Oct 25 2006', 'Oct 25, 2006'
-    # '%d %b %Y', '%d %b, %Y',          # '25 Oct 2006', '25 Oct, 2006'
-    # '%B %d %Y', '%B %d, %Y',          # 'October 25 2006', 'October 25, 2006'
-    # '%d %B %Y', '%d %B, %Y',          # '25 October 2006', '25 October, 2006'
+    '%d/%m/%Y',  # '25/10/2006'
+    '%d/%m/%y',  # '25/10/06'
+    # "%b %d %Y",  # 'Oct 25 2006'
+    # "%b %d, %Y",  # 'Oct 25, 2006'
+    # "%d %b %Y",  # '25 Oct 2006'
+    # "%d %b, %Y",  # '25 Oct, 2006'
+    # "%B %d %Y",  # 'October 25 2006'
+    # "%B %d, %Y",  # 'October 25, 2006'
+    # "%d %B %Y",  # '25 October 2006'
+    # "%d %B, %Y",  # '25 October, 2006'
 ]
 DATETIME_INPUT_FORMATS = [
     '%Y-%m-%d %H:%M:%S',                # '2006-10-25 14:30:59'
diff --git a/django/conf/locale/en_GB/formats.py b/django/conf/locale/en_GB/formats.py
index 8895179e90..84ab5a8a93 100644
--- a/django/conf/locale/en_GB/formats.py
+++ b/django/conf/locale/en_GB/formats.py
@@ -14,11 +14,16 @@ FIRST_DAY_OF_WEEK = 1                   # Monday
 # The *_INPUT_FORMATS strings use the Python strftime format syntax,
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 DATE_INPUT_FORMATS = [
-    '%d/%m/%Y', '%d/%m/%y',             # '25/10/2006', '25/10/06'
-    # '%b %d %Y', '%b %d, %Y',          # 'Oct 25 2006', 'Oct 25, 2006'
-    # '%d %b %Y', '%d %b, %Y',          # '25 Oct 2006', '25 Oct, 2006'
-    # '%B %d %Y', '%B %d, %Y',          # 'October 25 2006', 'October 25, 2006'
-    # '%d %B %Y', '%d %B, %Y',          # '25 October 2006', '25 October, 2006'
+    '%d/%m/%Y',  # '25/10/2006'
+    '%d/%m/%y',  # '25/10/06'
+    # "%b %d %Y",  # 'Oct 25 2006'
+    # "%b %d, %Y",  # 'Oct 25, 2006'
+    # "%d %b %Y",  # '25 Oct 2006'
+    # "%d %b, %Y",  # '25 Oct, 2006'
+    # "%B %d %Y",  # 'October 25 2006'
+    # "%B %d, %Y",  # 'October 25, 2006'
+    # "%d %B %Y",  # '25 October 2006'
+    # "%d %B, %Y",  # '25 October, 2006'
 ]
 DATETIME_INPUT_FORMATS = [
     '%Y-%m-%d %H:%M:%S',                # '2006-10-25 14:30:59'
diff --git a/django/conf/locale/es/formats.py b/django/conf/locale/es/formats.py
index b7aca78988..6b017df49a 100644
--- a/django/conf/locale/es/formats.py
+++ b/django/conf/locale/es/formats.py
@@ -14,8 +14,8 @@ FIRST_DAY_OF_WEEK = 1  # Monday
 # The *_INPUT_FORMATS strings use the Python strftime format syntax,
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 DATE_INPUT_FORMATS = [
-    # '31/12/2009', '31/12/09'
-    '%d/%m/%Y', '%d/%m/%y'
+    '%d/%m/%Y',  # '31/12/2009'
+    '%d/%m/%y',  # '31/12/09'
 ]
 DATETIME_INPUT_FORMATS = [
     '%d/%m/%Y %H:%M:%S',
diff --git a/django/conf/locale/es_CO/formats.py b/django/conf/locale/es_CO/formats.py
index cefbe26dae..d3a7a35d5c 100644
--- a/django/conf/locale/es_CO/formats.py
+++ b/django/conf/locale/es_CO/formats.py
@@ -9,7 +9,8 @@ SHORT_DATE_FORMAT = 'd/m/Y'
 SHORT_DATETIME_FORMAT = 'd/m/Y H:i'
 FIRST_DAY_OF_WEEK = 1
 DATE_INPUT_FORMATS = [
-    '%d/%m/%Y', '%d/%m/%y',  # '25/10/2006', '25/10/06'
+    '%d/%m/%Y',  # '25/10/2006'
+    '%d/%m/%y',  # '25/10/06'
     '%Y%m%d',                # '20061025'
 
 ]
diff --git a/django/conf/locale/es_MX/formats.py b/django/conf/locale/es_MX/formats.py
index 760edcfa1c..d5b94e6e89 100644
--- a/django/conf/locale/es_MX/formats.py
+++ b/django/conf/locale/es_MX/formats.py
@@ -9,7 +9,8 @@ SHORT_DATE_FORMAT = 'd/m/Y'
 SHORT_DATETIME_FORMAT = 'd/m/Y H:i'
 FIRST_DAY_OF_WEEK = 1  # Monday: ISO 8601
 DATE_INPUT_FORMATS = [
-    '%d/%m/%Y', '%d/%m/%y',             # '25/10/2006', '25/10/06'
+    '%d/%m/%Y',  # '25/10/2006'
+    '%d/%m/%y',  # '25/10/06'
     '%Y%m%d',                           # '20061025'
 ]
 DATETIME_INPUT_FORMATS = [
diff --git a/django/conf/locale/es_NI/formats.py b/django/conf/locale/es_NI/formats.py
index 2eacf506ee..ca17c9a998 100644
--- a/django/conf/locale/es_NI/formats.py
+++ b/django/conf/locale/es_NI/formats.py
@@ -9,7 +9,8 @@ SHORT_DATE_FORMAT = 'd/m/Y'
 SHORT_DATETIME_FORMAT = 'd/m/Y H:i'
 FIRST_DAY_OF_WEEK = 1  # Monday: ISO 8601
 DATE_INPUT_FORMATS = [
-    '%d/%m/%Y', '%d/%m/%y',            # '25/10/2006', '25/10/06'
+    '%d/%m/%Y',  # '25/10/2006'
+    '%d/%m/%y',  # '25/10/06'
     '%Y%m%d',                          # '20061025'
 
 ]
diff --git a/django/conf/locale/es_PR/formats.py b/django/conf/locale/es_PR/formats.py
index 7f53ef9fe2..8f95484f63 100644
--- a/django/conf/locale/es_PR/formats.py
+++ b/django/conf/locale/es_PR/formats.py
@@ -10,8 +10,8 @@ SHORT_DATETIME_FORMAT = 'd/m/Y H:i'
 FIRST_DAY_OF_WEEK = 0  # Sunday
 
 DATE_INPUT_FORMATS = [
-    # '31/12/2009', '31/12/09'
-    '%d/%m/%Y', '%d/%m/%y'
+    '%d/%m/%Y',  # '31/12/2009'
+    '%d/%m/%y',  # '31/12/09'
 ]
 DATETIME_INPUT_FORMATS = [
     '%d/%m/%Y %H:%M:%S',
diff --git a/django/conf/locale/fr/formats.py b/django/conf/locale/fr/formats.py
index f24e77f3e1..a7c45598c8 100644
--- a/django/conf/locale/fr/formats.py
+++ b/django/conf/locale/fr/formats.py
@@ -14,8 +14,10 @@ FIRST_DAY_OF_WEEK = 1  # Monday
 # The *_INPUT_FORMATS strings use the Python strftime format syntax,
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 DATE_INPUT_FORMATS = [
-    '%d/%m/%Y', '%d/%m/%y',  # '25/10/2006', '25/10/06'
-    '%d.%m.%Y', '%d.%m.%y',  # Swiss [fr_CH), '25.10.2006', '25.10.06'
+    '%d/%m/%Y',  # '25/10/2006'
+    '%d/%m/%y',  # '25/10/06'
+    '%d.%m.%Y',  # Swiss [fr_CH] '25.10.2006'
+    '%d.%m.%y',  # Swiss [fr_CH] '25.10.06'
     # '%d %B %Y', '%d %b %Y', # '25 octobre 2006', '25 oct. 2006'
 ]
 DATETIME_INPUT_FORMATS = [
diff --git a/django/conf/locale/hr/formats.py b/django/conf/locale/hr/formats.py
index 96ad19508e..627c39764f 100644
--- a/django/conf/locale/hr/formats.py
+++ b/django/conf/locale/hr/formats.py
@@ -16,8 +16,10 @@ FIRST_DAY_OF_WEEK = 1
 # Kept ISO formats as they are in first position
 DATE_INPUT_FORMATS = [
     '%Y-%m-%d',                     # '2006-10-25'
-    '%d.%m.%Y.', '%d.%m.%y.',       # '25.10.2006.', '25.10.06.'
-    '%d. %m. %Y.', '%d. %m. %y.',   # '25. 10. 2006.', '25. 10. 06.'
+    '%d.%m.%Y.',  # '25.10.2006.'
+    '%d.%m.%y.',  # '25.10.06.'
+    '%d. %m. %Y.',  # '25. 10. 2006.'
+    '%d. %m. %y.',  # '25. 10. 06.'
 ]
 DATETIME_INPUT_FORMATS = [
     '%Y-%m-%d %H:%M:%S',        # '2006-10-25 14:30:59'
diff --git a/django/conf/locale/id/formats.py b/django/conf/locale/id/formats.py
index b1e08f19a3..a8cdc9589c 100644
--- a/django/conf/locale/id/formats.py
+++ b/django/conf/locale/id/formats.py
@@ -14,11 +14,14 @@ FIRST_DAY_OF_WEEK = 1  # Monday
 # The *_INPUT_FORMATS strings use the Python strftime format syntax,
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 DATE_INPUT_FORMATS = [
-    '%d-%m-%Y', '%d/%m/%Y',             # '25-10-2009', 25/10/2009'
-    '%d-%m-%y', '%d/%m/%y',             # '25-10-09', 25/10/09'
+    '%d-%m-%Y',  # '25-10-2009'
+    '%d/%m/%Y',  # '25/10/2009'
+    '%d-%m-%y',  # '25-10-09'
+    '%d/%m/%y',  # '25/10/09'
     '%d %b %Y',                         # '25 Oct 2006',
     '%d %B %Y',                         # '25 October 2006'
-    '%m/%d/%y', '%m/%d/%Y',             # '10/25/06', '10/25/2009'
+    '%m/%d/%y',  # '10/25/06'
+    '%m/%d/%Y',  # '10/25/2009'
 ]
 
 TIME_INPUT_FORMATS = [
diff --git a/django/conf/locale/it/formats.py b/django/conf/locale/it/formats.py
index 8562aefb77..703297af03 100644
--- a/django/conf/locale/it/formats.py
+++ b/django/conf/locale/it/formats.py
@@ -14,9 +14,12 @@ FIRST_DAY_OF_WEEK = 1  # Lunedì
 # The *_INPUT_FORMATS strings use the Python strftime format syntax,
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 DATE_INPUT_FORMATS = [
-    '%d/%m/%Y', '%Y/%m/%d',  # '25/10/2006', '2008/10/25'
-    '%d-%m-%Y', '%Y-%m-%d',  # '25-10-2006', '2008-10-25'
-    '%d-%m-%y', '%d/%m/%y',  # '25-10-06', '25/10/06'
+    '%d/%m/%Y',  # '25/10/2006'
+    '%Y/%m/%d',  # '2006/10/25'
+    '%d-%m-%Y',  # '25-10-2006'
+    '%Y-%m-%d',  # '2006-10-25'
+    '%d-%m-%y',  # '25-10-06'
+    '%d/%m/%y',  # '25/10/06'
 ]
 DATETIME_INPUT_FORMATS = [
     '%d/%m/%Y %H:%M:%S',     # '25/10/2006 14:30:59'
diff --git a/django/conf/locale/ka/formats.py b/django/conf/locale/ka/formats.py
index 86308e3521..bc75ac7407 100644
--- a/django/conf/locale/ka/formats.py
+++ b/django/conf/locale/ka/formats.py
@@ -15,10 +15,16 @@ FIRST_DAY_OF_WEEK = 1  # (Monday)
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 # Kept ISO formats as they are in first position
 DATE_INPUT_FORMATS = [
-    '%Y-%m-%d', '%m/%d/%Y', '%m/%d/%y',     # '2006-10-25', '10/25/2006', '10/25/06'
-    '%d.%m.%Y', '%d.%m.%y',                 # '25.10.2006', '25.10.06'
-    # '%d %b %Y', '%d %b, %Y', '%d %b. %Y',   # '25 Oct 2006', '25 Oct, 2006', '25 Oct. 2006'
-    # '%d %B %Y', '%d %B, %Y',                # '25 October 2006', '25 October, 2006'
+    '%Y-%m-%d',  # '2006-10-25'
+    '%m/%d/%Y',  # '10/25/2006'
+    '%m/%d/%y',  # '10/25/06'
+    '%d.%m.%Y',  # '25.10.2006'
+    '%d.%m.%y',  # '25.10.06'
+    # "%d %b %Y",  # '25 Oct 2006'
+    # "%d %b, %Y",  # '25 Oct, 2006'
+    # "%d %b. %Y",  # '25 Oct. 2006'
+    # "%d %B %Y",  # '25 October 2006'
+    # "%d %B, %Y",  # '25 October, 2006'
 ]
 DATETIME_INPUT_FORMATS = [
     '%Y-%m-%d %H:%M:%S',     # '2006-10-25 14:30:59'
diff --git a/django/conf/locale/ko/formats.py b/django/conf/locale/ko/formats.py
index 0e281e94c1..78f9f10f17 100644
--- a/django/conf/locale/ko/formats.py
+++ b/django/conf/locale/ko/formats.py
@@ -15,11 +15,17 @@ SHORT_DATETIME_FORMAT = 'Y-n-j H:i'
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 # Kept ISO formats as they are in first position
 DATE_INPUT_FORMATS = [
-    '%Y-%m-%d', '%m/%d/%Y', '%m/%d/%y',  # '2006-10-25', '10/25/2006', '10/25/06'
-    # '%b %d %Y', '%b %d, %Y',            # 'Oct 25 2006', 'Oct 25, 2006'
-    # '%d %b %Y', '%d %b, %Y',            # '25 Oct 2006', '25 Oct, 2006'
-    # '%B %d %Y', '%B %d, %Y',            # 'October 25 2006', 'October 25, 2006'
-    # '%d %B %Y', '%d %B, %Y',            # '25 October 2006', '25 October, 2006'
+    '%Y-%m-%d',  # '2006-10-25'
+    '%m/%d/%Y',  # '10/25/2006'
+    '%m/%d/%y',  # '10/25/06'
+    # "%b %d %Y",  # 'Oct 25 2006'
+    # "%b %d, %Y",  # 'Oct 25, 2006'
+    # "%d %b %Y",  # '25 Oct 2006'
+    # "%d %b, %Y",  #'25 Oct, 2006'
+    # "%B %d %Y",  # 'October 25 2006'
+    # "%B %d, %Y",  #'October 25, 2006'
+    # "%d %B %Y",  # '25 October 2006'
+    # "%d %B, %Y",  # '25 October, 2006'
     '%Y년 %m월 %d일',                   # '2006년 10월 25일', with localized suffix.
 ]
 TIME_INPUT_FORMATS = [
diff --git a/django/conf/locale/lt/formats.py b/django/conf/locale/lt/formats.py
index 57631ffe97..94e4469057 100644
--- a/django/conf/locale/lt/formats.py
+++ b/django/conf/locale/lt/formats.py
@@ -14,7 +14,9 @@ FIRST_DAY_OF_WEEK = 1  # Monday
 # The *_INPUT_FORMATS strings use the Python strftime format syntax,
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 DATE_INPUT_FORMATS = [
-    '%Y-%m-%d', '%d.%m.%Y', '%d.%m.%y',  # '2006-10-25', '25.10.2006', '25.10.06'
+    '%Y-%m-%d',  # '2006-10-25'
+    '%d.%m.%Y',  # '25.10.2006'
+    '%d.%m.%y',  # '25.10.06'
 ]
 TIME_INPUT_FORMATS = [
     '%H:%M:%S',     # '14:30:59'
diff --git a/django/conf/locale/lv/formats.py b/django/conf/locale/lv/formats.py
index bc5f3b2eb8..9fac516cc5 100644
--- a/django/conf/locale/lv/formats.py
+++ b/django/conf/locale/lv/formats.py
@@ -15,7 +15,9 @@ FIRST_DAY_OF_WEEK = 1  # Monday
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 # Kept ISO formats as they are in first position
 DATE_INPUT_FORMATS = [
-    '%Y-%m-%d', '%d.%m.%Y', '%d.%m.%y',  # '2006-10-25', '25.10.2006', '25.10.06'
+    '%Y-%m-%d',  # '2006-10-25'
+    '%d.%m.%Y',  # '25.10.2006'
+    '%d.%m.%y',  # '25.10.06'
 ]
 TIME_INPUT_FORMATS = [
     '%H:%M:%S',     # '14:30:59'
diff --git a/django/conf/locale/mk/formats.py b/django/conf/locale/mk/formats.py
index 18d478235a..12e506163d 100644
--- a/django/conf/locale/mk/formats.py
+++ b/django/conf/locale/mk/formats.py
@@ -14,8 +14,10 @@ FIRST_DAY_OF_WEEK = 1
 # The *_INPUT_FORMATS strings use the Python strftime format syntax,
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 DATE_INPUT_FORMATS = [
-    '%d.%m.%Y', '%d.%m.%y',       # '25.10.2006', '25.10.06'
-    '%d. %m. %Y', '%d. %m. %y',   # '25. 10. 2006', '25. 10. 06'
+    '%d.%m.%Y',  # '25.10.2006'
+    '%d.%m.%y',  # '25.10.06'
+    '%d. %m. %Y',  # '25. 10. 2006'
+    '%d. %m. %y',  # '25. 10. 06'
 ]
 
 DATETIME_INPUT_FORMATS = [
diff --git a/django/conf/locale/ml/formats.py b/django/conf/locale/ml/formats.py
index ccace3d2b3..5f8b51d51d 100644
--- a/django/conf/locale/ml/formats.py
+++ b/django/conf/locale/ml/formats.py
@@ -15,11 +15,17 @@ FIRST_DAY_OF_WEEK = 0  # Sunday
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 # Kept ISO formats as they are in first position
 DATE_INPUT_FORMATS = [
-    '%Y-%m-%d', '%m/%d/%Y', '%m/%d/%y',  # '2006-10-25', '10/25/2006', '10/25/06'
-    # '%b %d %Y', '%b %d, %Y',            # 'Oct 25 2006', 'Oct 25, 2006'
-    # '%d %b %Y', '%d %b, %Y',            # '25 Oct 2006', '25 Oct, 2006'
-    # '%B %d %Y', '%B %d, %Y',            # 'October 25 2006', 'October 25, 2006'
-    # '%d %B %Y', '%d %B, %Y',            # '25 October 2006', '25 October, 2006'
+    '%Y-%m-%d',  # '2006-10-25'
+    '%m/%d/%Y',  # '10/25/2006'
+    '%m/%d/%y',  # '10/25/06'
+    # "%b %d %Y",  # 'Oct 25 2006'
+    # "%b %d, %Y",  # 'Oct 25, 2006'
+    # "%d %b %Y",  # '25 Oct 2006'
+    # "%d %b, %Y",  # '25 Oct, 2006'
+    # "%B %d %Y",  # 'October 25 2006'
+    # "%B %d, %Y",  # 'October 25, 2006'
+    # "%d %B %Y",  # '25 October 2006'
+    # "%d %B, %Y",  # '25 October, 2006'
 ]
 DATETIME_INPUT_FORMATS = [
     '%Y-%m-%d %H:%M:%S',     # '2006-10-25 14:30:59'
diff --git a/django/conf/locale/ms/formats.py b/django/conf/locale/ms/formats.py
index 0ea90e0c40..8f46fdc144 100644
--- a/django/conf/locale/ms/formats.py
+++ b/django/conf/locale/ms/formats.py
@@ -15,9 +15,12 @@ FIRST_DAY_OF_WEEK = 0                   # Sunday
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 DATE_INPUT_FORMATS = [
     '%Y-%m-%d',                         # '2006-10-25'
-    '%d/%m/%Y', '%d/%m/%y',             # '25/10/2006', '25/10/06'
-    '%d %b %Y', '%d %b, %Y',            # '25 Oct 2006', '25 Oct, 2006'
-    '%d %B %Y', '%d %B, %Y',            # '25 October 2006', '25 October, 2006'
+    '%d/%m/%Y',  # '25/10/2006'
+    '%d/%m/%y',  # '25/10/06'
+    '%d %b %Y',  # '25 Oct 2006'
+    '%d %b, %Y',  # '25 Oct, 2006'
+    '%d %B %Y',  # '25 October 2006'
+    '%d %B, %Y',  # '25 October, 2006'
 ]
 DATETIME_INPUT_FORMATS = [
     '%Y-%m-%d %H:%M:%S',                # '2006-10-25 14:30:59'
diff --git a/django/conf/locale/nb/formats.py b/django/conf/locale/nb/formats.py
index 91dd9e6bb7..c34cb778ea 100644
--- a/django/conf/locale/nb/formats.py
+++ b/django/conf/locale/nb/formats.py
@@ -15,10 +15,15 @@ FIRST_DAY_OF_WEEK = 1  # Monday
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 # Kept ISO formats as they are in first position
 DATE_INPUT_FORMATS = [
-    '%Y-%m-%d', '%d.%m.%Y', '%d.%m.%y',  # '2006-10-25', '25.10.2006', '25.10.06'
-    # '%d. %b %Y', '%d %b %Y',            # '25. okt 2006', '25 okt 2006'
-    # '%d. %b. %Y', '%d %b. %Y',          # '25. okt. 2006', '25 okt. 2006'
-    # '%d. %B %Y', '%d %B %Y',            # '25. oktober 2006', '25 oktober 2006'
+    '%Y-%m-%d',  # '2006-10-25'
+    '%d.%m.%Y',  # '25.10.2006'
+    '%d.%m.%y',  # '25.10.06'
+    # "%d. %b %Y",  # '25. okt 2006'
+    # "%d %b %Y",  # '25 okt 2006'
+    # "%d. %b. %Y",  # '25. okt. 2006'
+    # "%d %b. %Y",  # '25 okt. 2006'
+    # "%d. %B %Y",  # '25. oktober 2006'
+    # "%d %B %Y",  # '25 oktober 2006'
 ]
 DATETIME_INPUT_FORMATS = [
     '%Y-%m-%d %H:%M:%S',     # '2006-10-25 14:30:59'
diff --git a/django/conf/locale/nl/formats.py b/django/conf/locale/nl/formats.py
index afadb9f1d7..fbe937c3f4 100644
--- a/django/conf/locale/nl/formats.py
+++ b/django/conf/locale/nl/formats.py
@@ -14,11 +14,15 @@ FIRST_DAY_OF_WEEK = 1                   # Monday (in Dutch 'maandag')
 # The *_INPUT_FORMATS strings use the Python strftime format syntax,
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 DATE_INPUT_FORMATS = [
-    '%d-%m-%Y', '%d-%m-%y',             # '20-01-2009', '20-01-09'
-    '%d/%m/%Y', '%d/%m/%y',             # '20/01/2009', '20/01/09'
+    '%d-%m-%Y',  # '20-01-2009'
+    '%d-%m-%y',  # '20-01-09'
+    '%d/%m/%Y',  # '20/01/2009'
+    '%d/%m/%y',  # '20/01/09'
     '%Y/%m/%d',                         # '2009/01/20'
-    # '%d %b %Y', '%d %b %y',           # '20 jan 2009', '20 jan 09'
-    # '%d %B %Y', '%d %B %y',           # '20 januari 2009', '20 januari 09'
+    # "%d %b %Y",  # '20 jan 2009'
+    # "%d %b %y",  # '20 jan 09'
+    # "%d %B %Y",  # '20 januari 2009'
+    # "%d %B %y",  # '20 januari 09'
 ]
 # Kept ISO formats as one is in first position
 TIME_INPUT_FORMATS = [
@@ -31,35 +35,57 @@ TIME_INPUT_FORMATS = [
 ]
 DATETIME_INPUT_FORMATS = [
     # With time in %H:%M:%S :
-    '%d-%m-%Y %H:%M:%S', '%d-%m-%y %H:%M:%S', '%Y-%m-%d %H:%M:%S',
-    # '20-01-2009 15:23:35', '20-01-09 15:23:35', '2009-01-20 15:23:35'
-    '%d/%m/%Y %H:%M:%S', '%d/%m/%y %H:%M:%S', '%Y/%m/%d %H:%M:%S',
-    # '20/01/2009 15:23:35', '20/01/09 15:23:35', '2009/01/20 15:23:35'
-    # '%d %b %Y %H:%M:%S', '%d %b %y %H:%M:%S',   # '20 jan 2009 15:23:35', '20 jan 09 15:23:35'
-    # '%d %B %Y %H:%M:%S', '%d %B %y %H:%M:%S',   # '20 januari 2009 15:23:35', '20 januari 2009 15:23:35'
+    '%d-%m-%Y %H:%M:%S',  # '20-01-2009 15:23:35'
+    '%d-%m-%y %H:%M:%S',  # '20-01-09 15:23:35'
+    '%Y-%m-%d %H:%M:%S',  # '2009-01-20 15:23:35'
+    '%d/%m/%Y %H:%M:%S',  # '20/01/2009 15:23:35'
+    '%d/%m/%y %H:%M:%S',  # '20/01/09 15:23:35'
+    '%Y/%m/%d %H:%M:%S',  # '2009/01/20 15:23:35'
+    # "%d %b %Y %H:%M:%S",  # '20 jan 2009 15:23:35'
+    # "%d %b %y %H:%M:%S",  # '20 jan 09 15:23:35'
+    # "%d %B %Y %H:%M:%S",  # '20 januari 2009 15:23:35'
+    # "%d %B %y %H:%M:%S",  # '20 januari 2009 15:23:35'
     # With time in %H:%M:%S.%f :
-    '%d-%m-%Y %H:%M:%S.%f', '%d-%m-%y %H:%M:%S.%f', '%Y-%m-%d %H:%M:%S.%f',
-    # '20-01-2009 15:23:35.000200', '20-01-09 15:23:35.000200', '2009-01-20 15:23:35.000200'
-    '%d/%m/%Y %H:%M:%S.%f', '%d/%m/%y %H:%M:%S.%f', '%Y/%m/%d %H:%M:%S.%f',
-    # '20/01/2009 15:23:35.000200', '20/01/09 15:23:35.000200', '2009/01/20 15:23:35.000200'
+    '%d-%m-%Y %H:%M:%S.%f',  # '20-01-2009 15:23:35.000200'
+    '%d-%m-%y %H:%M:%S.%f',  # '20-01-09 15:23:35.000200'
+    '%Y-%m-%d %H:%M:%S.%f',  # '2009-01-20 15:23:35.000200'
+    '%d/%m/%Y %H:%M:%S.%f',  # '20/01/2009 15:23:35.000200'
+    '%d/%m/%y %H:%M:%S.%f',  # '20/01/09 15:23:35.000200'
+    '%Y/%m/%d %H:%M:%S.%f',  # '2009/01/20 15:23:35.000200'
     # With time in %H.%M:%S :
-    '%d-%m-%Y %H.%M:%S', '%d-%m-%y %H.%M:%S',   # '20-01-2009 15.23:35', '20-01-09 15.23:35'
-    '%d/%m/%Y %H.%M:%S', '%d/%m/%y %H.%M:%S',   # '20/01/2009 15.23:35', '20/01/09 15.23:35'
-    # '%d %b %Y %H.%M:%S', '%d %b %y %H.%M:%S',   # '20 jan 2009 15.23:35', '20 jan 09 15.23:35'
-    # '%d %B %Y %H.%M:%S', '%d %B %y %H.%M:%S',   # '20 januari 2009 15.23:35', '20 januari 2009 15.23:35'
+    '%d-%m-%Y %H.%M:%S',  # '20-01-2009 15.23:35'
+    '%d-%m-%y %H.%M:%S',  # '20-01-09 15.23:35'
+    '%d/%m/%Y %H.%M:%S',  # '20/01/2009 15.23:35'
+    '%d/%m/%y %H.%M:%S',  # '20/01/09 15.23:35'
+    # "%d %b %Y %H.%M:%S",  # '20 jan 2009 15.23:35'
+    # "%d %b %y %H.%M:%S",  # '20 jan 09 15.23:35'
+    # "%d %B %Y %H.%M:%S",  # '20 januari 2009 15.23:35'
+    # "%d %B %y %H.%M:%S",  # '20 januari 2009 15.23:35'
     # With time in %H.%M:%S.%f :
-    '%d-%m-%Y %H.%M:%S.%f', '%d-%m-%y %H.%M:%S.%f',   # '20-01-2009 15.23:35.000200', '20-01-09 15.23:35.000200'
-    '%d/%m/%Y %H.%M:%S.%f', '%d/%m/%y %H.%M:%S.%f',   # '20/01/2009 15.23:35.000200', '20/01/09 15.23:35.000200'
+    '%d-%m-%Y %H.%M:%S.%f',  # '20-01-2009 15.23:35.000200'
+    '%d-%m-%y %H.%M:%S.%f',  # '20-01-09 15.23:35.000200'
+    '%d/%m/%Y %H.%M:%S.%f',  # '20/01/2009 15.23:35.000200'
+    '%d/%m/%y %H.%M:%S.%f',  # '20/01/09 15.23:35.000200'
     # With time in %H:%M :
-    '%d-%m-%Y %H:%M', '%d-%m-%y %H:%M', '%Y-%m-%d %H:%M',   # '20-01-2009 15:23', '20-01-09 15:23', '2009-01-20 15:23'
-    '%d/%m/%Y %H:%M', '%d/%m/%y %H:%M', '%Y/%m/%d %H:%M',   # '20/01/2009 15:23', '20/01/09 15:23', '2009/01/20 15:23'
-    # '%d %b %Y %H:%M', '%d %b %y %H:%M',         # '20 jan 2009 15:23', '20 jan 09 15:23'
-    # '%d %B %Y %H:%M', '%d %B %y %H:%M',         # '20 januari 2009 15:23', '20 januari 2009 15:23'
+    '%d-%m-%Y %H:%M',  # '20-01-2009 15:23'
+    '%d-%m-%y %H:%M',  # '20-01-09 15:23'
+    '%Y-%m-%d %H:%M',  # '2009-01-20 15:23'
+    '%d/%m/%Y %H:%M',  # '20/01/2009 15:23'
+    '%d/%m/%y %H:%M',  # '20/01/09 15:23'
+    '%Y/%m/%d %H:%M',  # '2009/01/20 15:23'
+    # "%d %b %Y %H:%M",  # '20 jan 2009 15:23'
+    # "%d %b %y %H:%M",  # '20 jan 09 15:23'
+    # "%d %B %Y %H:%M",  # '20 januari 2009 15:23'
+    # "%d %B %y %H:%M",  # '20 januari 2009 15:23'
     # With time in %H.%M :
-    '%d-%m-%Y %H.%M', '%d-%m-%y %H.%M',         # '20-01-2009 15.23', '20-01-09 15.23'
-    '%d/%m/%Y %H.%M', '%d/%m/%y %H.%M',         # '20/01/2009 15.23', '20/01/09 15.23'
-    # '%d %b %Y %H.%M', '%d %b %y %H.%M',         # '20 jan 2009 15.23', '20 jan 09 15.23'
-    # '%d %B %Y %H.%M', '%d %B %y %H.%M',         # '20 januari 2009 15.23', '20 januari 2009 15.23'
+    '%d-%m-%Y %H.%M',  # '20-01-2009 15.23'
+    '%d-%m-%y %H.%M',  # '20-01-09 15.23'
+    '%d/%m/%Y %H.%M',  # '20/01/2009 15.23'
+    '%d/%m/%y %H.%M',  # '20/01/09 15.23'
+    # "%d %b %Y %H.%M",  # '20 jan 2009 15.23'
+    # "%d %b %y %H.%M",  # '20 jan 09 15.23'
+    # "%d %B %Y %H.%M",  # '20 januari 2009 15.23'
+    # "%d %B %y %H.%M",  # '20 januari 2009 15.23'
 ]
 DECIMAL_SEPARATOR = ','
 THOUSAND_SEPARATOR = '.'
diff --git a/django/conf/locale/nn/formats.py b/django/conf/locale/nn/formats.py
index 91dd9e6bb7..c34cb778ea 100644
--- a/django/conf/locale/nn/formats.py
+++ b/django/conf/locale/nn/formats.py
@@ -15,10 +15,15 @@ FIRST_DAY_OF_WEEK = 1  # Monday
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 # Kept ISO formats as they are in first position
 DATE_INPUT_FORMATS = [
-    '%Y-%m-%d', '%d.%m.%Y', '%d.%m.%y',  # '2006-10-25', '25.10.2006', '25.10.06'
-    # '%d. %b %Y', '%d %b %Y',            # '25. okt 2006', '25 okt 2006'
-    # '%d. %b. %Y', '%d %b. %Y',          # '25. okt. 2006', '25 okt. 2006'
-    # '%d. %B %Y', '%d %B %Y',            # '25. oktober 2006', '25 oktober 2006'
+    '%Y-%m-%d',  # '2006-10-25'
+    '%d.%m.%Y',  # '25.10.2006'
+    '%d.%m.%y',  # '25.10.06'
+    # "%d. %b %Y",  # '25. okt 2006'
+    # "%d %b %Y",  # '25 okt 2006'
+    # "%d. %b. %Y",  # '25. okt. 2006'
+    # "%d %b. %Y",  # '25 okt. 2006'
+    # "%d. %B %Y",  # '25. oktober 2006'
+    # "%d %B %Y",  # '25 oktober 2006'
 ]
 DATETIME_INPUT_FORMATS = [
     '%Y-%m-%d %H:%M:%S',     # '2006-10-25 14:30:59'
diff --git a/django/conf/locale/pl/formats.py b/django/conf/locale/pl/formats.py
index e666544747..7c9e30ad1f 100644
--- a/django/conf/locale/pl/formats.py
+++ b/django/conf/locale/pl/formats.py
@@ -14,9 +14,11 @@ FIRST_DAY_OF_WEEK = 1  # Monday
 # The *_INPUT_FORMATS strings use the Python strftime format syntax,
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 DATE_INPUT_FORMATS = [
-    '%d.%m.%Y', '%d.%m.%y',     # '25.10.2006', '25.10.06'
+    '%d.%m.%Y',  # '25.10.2006'
+    '%d.%m.%y',  # '25.10.06'
     '%y-%m-%d',                 # '06-10-25'
-    # '%d. %B %Y', '%d. %b. %Y',  # '25. October 2006', '25. Oct. 2006'
+    # "%d. %B %Y",  # '25. października 2006'
+    # "%d. %b. %Y",  # '25. paź. 2006'
 ]
 DATETIME_INPUT_FORMATS = [
     '%d.%m.%Y %H:%M:%S',     # '25.10.2006 14:30:59'
diff --git a/django/conf/locale/pt/formats.py b/django/conf/locale/pt/formats.py
index b0fbbad903..39e06c7002 100644
--- a/django/conf/locale/pt/formats.py
+++ b/django/conf/locale/pt/formats.py
@@ -15,9 +15,13 @@ FIRST_DAY_OF_WEEK = 0  # Sunday
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 # Kept ISO formats as they are in first position
 DATE_INPUT_FORMATS = [
-    '%Y-%m-%d', '%d/%m/%Y', '%d/%m/%y',   # '2006-10-25', '25/10/2006', '25/10/06'
-    # '%d de %b de %Y', '%d de %b, %Y',   # '25 de Out de 2006', '25 Out, 2006'
-    # '%d de %B de %Y', '%d de %B, %Y',   # '25 de Outubro de 2006', '25 de Outubro, 2006'
+    '%Y-%m-%d',  # '2006-10-25'
+    '%d/%m/%Y',  # '25/10/2006'
+    '%d/%m/%y',  # '25/10/06'
+    # "%d de %b de %Y",  # '25 de Out de 2006'
+    # "%d de %b, %Y",  # '25 Out, 2006'
+    # "%d de %B de %Y",  # '25 de Outubro de 2006'
+    # "%d de %B, %Y",  # '25 de Outubro, 2006'
 ]
 DATETIME_INPUT_FORMATS = [
     '%Y-%m-%d %H:%M:%S',     # '2006-10-25 14:30:59'
diff --git a/django/conf/locale/pt_BR/formats.py b/django/conf/locale/pt_BR/formats.py
index ed0c09fc7b..9f3244955d 100644
--- a/django/conf/locale/pt_BR/formats.py
+++ b/django/conf/locale/pt_BR/formats.py
@@ -14,9 +14,12 @@ FIRST_DAY_OF_WEEK = 0  # Sunday
 # The *_INPUT_FORMATS strings use the Python strftime format syntax,
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 DATE_INPUT_FORMATS = [
-    '%d/%m/%Y', '%d/%m/%y',  # '25/10/2006', '25/10/06'
-    # '%d de %b de %Y', '%d de %b, %Y',   # '25 de Out de 2006', '25 Out, 2006'
-    # '%d de %B de %Y', '%d de %B, %Y',   # '25 de Outubro de 2006', '25 de Outubro, 2006'
+    '%d/%m/%Y',  # '25/10/2006'
+    '%d/%m/%y',  # '25/10/06'
+    # "%d de %b de %Y",  # '24 de Out de 2006'
+    # "%d de %b, %Y",  # '25 Out, 2006'
+    # "%d de %B de %Y",  # '25 de Outubro de 2006'
+    # "%d de %B, %Y",  # '25 de Outubro, 2006'
 ]
 DATETIME_INPUT_FORMATS = [
     '%d/%m/%Y %H:%M:%S',     # '25/10/2006 14:30:59'
diff --git a/django/conf/locale/sk/formats.py b/django/conf/locale/sk/formats.py
index 20526419f8..56e710dd44 100644
--- a/django/conf/locale/sk/formats.py
+++ b/django/conf/locale/sk/formats.py
@@ -14,9 +14,11 @@ FIRST_DAY_OF_WEEK = 1  # Monday
 # The *_INPUT_FORMATS strings use the Python strftime format syntax,
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 DATE_INPUT_FORMATS = [
-    '%d.%m.%Y', '%d.%m.%y',     # '25.10.2006', '25.10.06'
+    '%d.%m.%Y',  # '25.10.2006'
+    '%d.%m.%y',  # '25.10.06'
     '%y-%m-%d',                 # '06-10-25'
-    # '%d. %B %Y', '%d. %b. %Y',  # '25. October 2006', '25. Oct. 2006'
+    # "%d. %B %Y",  # '25. October 2006'
+    # "%d. %b. %Y",  # '25. Oct. 2006'
 ]
 DATETIME_INPUT_FORMATS = [
     '%d.%m.%Y %H:%M:%S',     # '25.10.2006 14:30:59'
diff --git a/django/conf/locale/sl/formats.py b/django/conf/locale/sl/formats.py
index 35de5adfac..ab6d46d9f1 100644
--- a/django/conf/locale/sl/formats.py
+++ b/django/conf/locale/sl/formats.py
@@ -14,9 +14,11 @@ FIRST_DAY_OF_WEEK = 0
 # The *_INPUT_FORMATS strings use the Python strftime format syntax,
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 DATE_INPUT_FORMATS = [
-    '%d.%m.%Y', '%d.%m.%y',         # '25.10.2006', '25.10.06'
+    '%d.%m.%Y',  # '25.10.2006'
+    '%d.%m.%y',  # '25.10.06'
     '%d-%m-%Y',                     # '25-10-2006'
-    '%d. %m. %Y', '%d. %m. %y',     # '25. 10. 2006', '25. 10. 06'
+    '%d. %m. %Y',  # '25. 10. 2006'
+    '%d. %m. %y',  # '25. 10. 06'
 ]
 
 DATETIME_INPUT_FORMATS = [
diff --git a/django/conf/locale/sr/formats.py b/django/conf/locale/sr/formats.py
index 937a409257..624571cd95 100644
--- a/django/conf/locale/sr/formats.py
+++ b/django/conf/locale/sr/formats.py
@@ -14,11 +14,16 @@ FIRST_DAY_OF_WEEK = 1
 # The *_INPUT_FORMATS strings use the Python strftime format syntax,
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 DATE_INPUT_FORMATS = [
-    '%d.%m.%Y.', '%d.%m.%y.',       # '25.10.2006.', '25.10.06.'
-    '%d. %m. %Y.', '%d. %m. %y.',   # '25. 10. 2006.', '25. 10. 06.'
-    # '%d. %b %y.', '%d. %B %y.',     # '25. Oct 06.', '25. October 06.'
-    # '%d. %b \'%y.', '%d. %B \'%y.', # '25. Oct '06.', '25. October '06.'
-    # '%d. %b %Y.', '%d. %B %Y.',     # '25. Oct 2006.', '25. October 2006.'
+    '%d.%m.%Y.',  # '25.10.2006.'
+    '%d.%m.%y.',  # '25.10.06.'
+    '%d. %m. %Y.',  # '25. 10. 2006.'
+    '%d. %m. %y.',  # '25. 10. 06.'
+    # "%d. %b %y.",  # '25. Oct 06.'
+    # "%d. %B %y.",  # '25. October 06.'
+    # "%d. %b '%y.",  # '25. Oct '06.'
+    # "%d. %B '%y.",  # '25. October '06.'
+    # "%d. %b %Y.",  # '25. Oct 2006.'
+    # "%d. %B %Y.",  # '25. October 2006.'
 ]
 DATETIME_INPUT_FORMATS = [
     '%d.%m.%Y. %H:%M:%S',       # '25.10.2006. 14:30:59'
diff --git a/django/conf/locale/sr_Latn/formats.py b/django/conf/locale/sr_Latn/formats.py
index 937a409257..5c28783825 100644
--- a/django/conf/locale/sr_Latn/formats.py
+++ b/django/conf/locale/sr_Latn/formats.py
@@ -14,11 +14,16 @@ FIRST_DAY_OF_WEEK = 1
 # The *_INPUT_FORMATS strings use the Python strftime format syntax,
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 DATE_INPUT_FORMATS = [
-    '%d.%m.%Y.', '%d.%m.%y.',       # '25.10.2006.', '25.10.06.'
-    '%d. %m. %Y.', '%d. %m. %y.',   # '25. 10. 2006.', '25. 10. 06.'
-    # '%d. %b %y.', '%d. %B %y.',     # '25. Oct 06.', '25. October 06.'
-    # '%d. %b \'%y.', '%d. %B \'%y.', # '25. Oct '06.', '25. October '06.'
-    # '%d. %b %Y.', '%d. %B %Y.',     # '25. Oct 2006.', '25. October 2006.'
+    '%d.%m.%Y.',  # '25.10.2006.'
+    '%d.%m.%y.',  # '25.10.06.'
+    '%d. %m. %Y.',  # '25. 10. 2006.'
+    '%d. %m. %y.',  # '25. 10. 06.'
+    # "%d. %b %y.",  # '25. Oct 06.'
+    # "%d. %B %y.",  # '25. October 06.'
+    # "%d. %b '%y.",  # '25. Oct '06.'
+    # "%d. %B '%y.",  #'25. October '06.'
+    # "%d. %b %Y.",  # '25. Oct 2006.'
+    # "%d. %B %Y.",  # '25. October 2006.'
 ]
 DATETIME_INPUT_FORMATS = [
     '%d.%m.%Y. %H:%M:%S',       # '25.10.2006. 14:30:59'
diff --git a/django/conf/locale/tr/formats.py b/django/conf/locale/tr/formats.py
index 1be5ac51af..74bdab729b 100644
--- a/django/conf/locale/tr/formats.py
+++ b/django/conf/locale/tr/formats.py
@@ -14,9 +14,11 @@ FIRST_DAY_OF_WEEK = 1  # Pazartesi
 # The *_INPUT_FORMATS strings use the Python strftime format syntax,
 # see https://docs.python.org/library/datetime.html#strftime-strptime-behavior
 DATE_INPUT_FORMATS = [
-    '%d/%m/%Y', '%d/%m/%y',     # '25/10/2006', '25/10/06'
+    '%d/%m/%Y',  # '25/10/2006'
+    '%d/%m/%y',  # '25/10/06'
     '%y-%m-%d',                 # '06-10-25'
-    # '%d %B %Y', '%d %b. %Y',  # '25 Ekim 2006', '25 Eki. 2006'
+    # "%d %B %Y",  # '25 Ekim 2006'
+    # "%d %b. %Y",  # '25 Eki. 2006'
 ]
 DATETIME_INPUT_FORMATS = [
     '%d/%m/%Y %H:%M:%S',     # '25/10/2006 14:30:59'
diff --git a/docs/ref/settings.txt b/docs/ref/settings.txt
index dac29755d0..73a4b8b649 100644
--- a/docs/ref/settings.txt
+++ b/docs/ref/settings.txt
@@ -1141,11 +1141,17 @@ See also :setting:`DATETIME_FORMAT`, :setting:`TIME_FORMAT` and :setting:`SHORT_
 Default::
 
     [
-        '%Y-%m-%d', '%m/%d/%Y', '%m/%d/%y', # '2006-10-25', '10/25/2006', '10/25/06'
-        '%b %d %Y', '%b %d, %Y',            # 'Oct 25 2006', 'Oct 25, 2006'
-        '%d %b %Y', '%d %b, %Y',            # '25 Oct 2006', '25 Oct, 2006'
-        '%B %d %Y', '%B %d, %Y',            # 'October 25 2006', 'October 25, 2006'
-        '%d %B %Y', '%d %B, %Y',            # '25 October 2006', '25 October, 2006'
+        '%Y-%m-%d',  # '2006-10-25'
+        '%m/%d/%Y',  # '10/25/2006'
+        '%m/%d/%y',  # '10/25/06'
+        '%b %d %Y',  # 'Oct 25 2006'
+        '%b %d, %Y',  # 'Oct 25, 2006'
+        '%d %b %Y',  # '25 Oct 2006'
+        '%d %b, %Y',  # '25 Oct, 2006'
+        '%B %d %Y',  # 'October 25 2006'
+        '%B %d, %Y',  # 'October 25, 2006'
+        '%d %B %Y',  # '25 October 2006'
+        '%d %B, %Y',  # '25 October, 2006'
     ]
 
 A list of formats that will be accepted when inputting data on a date field.