diff --git a/django/conf/locale/el/formats.py b/django/conf/locale/el/formats.py
index d81a2f4f552..429db4b5086 100644
--- a/django/conf/locale/el/formats.py
+++ b/django/conf/locale/el/formats.py
@@ -5,20 +5,34 @@ from __future__ import unicode_literals
 
 # The *_FORMAT strings use the Django date format syntax,
 # see http://docs.djangoproject.com/en/dev/ref/templates/builtins/#date
-DATE_FORMAT = 'd E Y'
-TIME_FORMAT = 'g:i A'
-# DATETIME_FORMAT =
+DATE_FORMAT = 'd/m/Y'
+TIME_FORMAT = 'P'
+DATETIME_FORMAT = 'd/m/Y P'
 YEAR_MONTH_FORMAT = 'F Y'
 MONTH_DAY_FORMAT = 'j F'
-SHORT_DATE_FORMAT = 'd M Y'
-# SHORT_DATETIME_FORMAT =
-# FIRST_DAY_OF_WEEK =
+SHORT_DATE_FORMAT = 'd/m/Y'
+SHORT_DATETIME_FORMAT = 'd/m/Y P'
+FIRST_DAY_OF_WEEK = 0  # Sunday
 
 # The *_INPUT_FORMATS strings use the Python strftime format syntax,
 # see http://docs.python.org/library/datetime.html#strftime-strptime-behavior
-# DATE_INPUT_FORMATS =
-# TIME_INPUT_FORMATS =
-# DATETIME_INPUT_FORMATS =
+DATE_INPUT_FORMATS = (
+    '%d/%m/%Y', '%d/%m/%y', '%Y-%m-%d',  # '25/10/2006', '25/10/06', '2006-10-25',
+)
+DATETIME_INPUT_FORMATS = (
+    '%d/%m/%Y %H:%M:%S',     # '25/10/2006 14:30:59'
+    '%d/%m/%Y %H:%M:%S.%f',  # '25/10/2006 14:30:59.000200'
+    '%d/%m/%Y %H:%M',        # '25/10/2006 14:30'
+    '%d/%m/%Y',              # '25/10/2006'
+    '%d/%m/%y %H:%M:%S',     # '25/10/06 14:30:59'
+    '%d/%m/%y %H:%M:%S.%f',  # '25/10/06 14:30:59.000200'
+    '%d/%m/%y %H:%M',        # '25/10/06 14:30'
+    '%d/%m/%y',              # '25/10/06'
+    '%Y-%m-%d %H:%M:%S',     # '2006-10-25 14:30:59'
+    '%Y-%m-%d %H:%M:%S.%f',  # '2006-10-25 14:30:59.000200'
+    '%Y-%m-%d %H:%M',        # '2006-10-25 14:30'
+    '%Y-%m-%d',              # '2006-10-25'
+)
 DECIMAL_SEPARATOR = ','
-THOUSAND_SEPARATOR = '.'
-# NUMBER_GROUPING =
+THOUSAND_SEPARATOR = '\xa0'  # non-breaking space
+NUMBER_GROUPING = 3
diff --git a/docs/releases/1.7.3.txt b/docs/releases/1.7.3.txt
index cd0c1efdf75..3a651f0bd9c 100644
--- a/docs/releases/1.7.3.txt
+++ b/docs/releases/1.7.3.txt
@@ -24,3 +24,5 @@ Bugfixes
 * Fixed a crash in the ``django.contrib.auth.redirect_to_login`` view when
   passing a :func:`~django.core.urlresolvers.reverse_lazy` result on Python 3
   (:ticket:`24097`).
+
+* Added correct formats for Greek (``el``) (:ticket:`23967`).