diff --git a/core/tests.py b/core/tests.py
index 93fd7403..5fffa6a5 100644
--- a/core/tests.py
+++ b/core/tests.py
@@ -625,11 +625,12 @@ class UtilsTest(TestCase):
         autumn_month, autumn_day = settings.SITH_SEMESTER_START_AUTUMN
         spring_month, spring_day = settings.SITH_SEMESTER_START_SPRING
 
-        t1_autumn_day = date(2025, 1, 1)
-        t2_autumn_day = date(2024, 9, 1)
+        t1_autumn_day = date(2025, 1, 4)  # between 1st January and 15 February
+        t2_autumn_day = date(2024, 9, 1)  # between 15 August and 31 December
+        t3_autumn_day = date(2024, autumn_month, autumn_day)  # on 15 August
 
-        t1_spring_day = date(2023, 3, 1)
-        t2_spring_day = date(2023, spring_month, spring_day)
+        t1_spring_day = date(2023, 3, 1)  # between 15 February and 15 August
+        t2_spring_day = date(2023, spring_month, spring_day)  # on 15 February
 
         self.assertEqual(
             get_start_of_semester(t1_autumn_day), date(2024, autumn_month, autumn_day)
@@ -637,6 +638,9 @@ class UtilsTest(TestCase):
         self.assertEqual(
             get_start_of_semester(t2_autumn_day), date(2024, autumn_month, autumn_day)
         )
+        self.assertEqual(
+            get_start_of_semester(t3_autumn_day), date(2024, autumn_month, autumn_day)
+        )
         self.assertEqual(
             get_start_of_semester(t1_spring_day), date(2023, spring_month, spring_day)
         )