diff --git a/mainsite/models.py b/mainsite/models.py
index 76fba29..9145e4a 100644
--- a/mainsite/models.py
+++ b/mainsite/models.py
@@ -102,7 +102,7 @@ class Publication(models.Model):
 
 class PublicationYear(models.Model):
     startYear = IntegerField('Année de début',
-                             help_text='Année scolaire à partir du 1/08',
+                             help_text='Année scolaire à partir du 15/08',
                              primary_key=True)
     descr = MarkdownxField("Accroche de l'année (Markdown)")
 
@@ -111,11 +111,11 @@ class PublicationYear(models.Model):
 
     def beg(self):
         ''' First day of this publication year (incl.) '''
-        return datetime.date(self.startYear, 8, 1)
+        return datetime.date(self.startYear, 8, 15)
 
     def end(self):
         ''' Last day of this publication year (excl.) '''
-        return datetime.date(self.startYear + 1, 8, 1)
+        return datetime.date(self.startYear + 1, 8, 15)
 
     def inYear(self, date):
         return self.beg() <= date < self.end()