diff -r dff58e6bea47 -r 75dc1e794cf4 src/notes/models/core.py
--- a/src/notes/models/core.py	Wed Jun 21 08:45:29 2017 +0200
+++ b/src/notes/models/core.py	Wed Jun 21 14:12:45 2017 +0200
@@ -3,16 +3,22 @@
 """
 from django.conf import settings
 from django.db import models
+from django.utils import timezone
 from django.utils.translation import ugettext_lazy as _
 
 from .base import Model
 
 
 class Session(Model):
+    """
+    Class modeling a Session
+    """
     class Meta:
         verbose_name = _('Session')
         verbose_name_plural = _('Sessions')
 
+    date = models.DateTimeField(default=timezone.now, verbose_name=_('Session|date'))
+
     owner = models.ForeignKey(
         settings.AUTH_USER_MODEL,
         on_delete=models.CASCADE,
@@ -35,6 +41,9 @@
 
 
 class Note(Model):
+    """
+    Class nodeling a Note
+    """
     class Meta:
         verbose_name = _('Note')
         verbose_name_plural = _('Notes')