diff --git a/src/planning/models.py b/src/planning/models.py
index d60bb12..5798ab9 100644
--- a/src/planning/models.py
+++ b/src/planning/models.py
@@ -330,6 +330,12 @@ class Course(Markdownizable, Temporizable):
         """
         return time_diff(self.hour_begin, self.hour_end)
 
+    @property
+    def total_number_of_hours(self) -> timedelta:
+        """Retourne le temps total a été consacré à ce cours
+        """
+        return self.get_number_of_real_occurrences * self.number_of_hours
+
     @property
     def get_number_of_planned_occurrences(self):
         return self.get_total_occurence()
diff --git a/src/planning/tests/tests_models.py b/src/planning/tests/tests_models.py
index d8cb8e5..cf7f946 100644
--- a/src/planning/tests/tests_models.py
+++ b/src/planning/tests/tests_models.py
@@ -73,6 +73,23 @@ class TestCourse(TestCase):
 
         self.assertEqual(course.get_number_of_real_occurrences, 0)
 
+    def test_total_number_of_hours_should_be_39_times_3(self):
+        """Vérifie que le nombre total d'heures consacrées est bien égal à 39 séances * 3h
+
+        Remarks:
+            39 séances * 3h = 117h = 4 jours + 21h = timedelta(days=3, seconds=75600) :-)
+        """
+        course = Course.objects.create(
+            iso_day_number=2,
+            datebegin=datetime(2021, 1, 1),
+            dateend=datetime(2021, 9, 30),
+            hour_begin=time(hour=19, minute=0),
+            hour_end=time(hour=22, minute=0),
+            club=self.club
+        )
+
+        self.assertEqual(course.total_number_of_hours, timedelta(days=4, seconds=75600))
+
     def test_number_of_real_occurrences_should_be_21(self):
         course = Course.objects.create(
             iso_day_number=2,