diff --git a/.vscode/launch.json b/.vscode/launch.json
index bf1e98d..7651209 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -4,6 +4,13 @@
   // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
   "version": "0.2.0",
   "configurations": [
+    {
+      "name": "Debug Single Test",
+      "type": "python",
+      "request": "launch",
+      "program": "C:\\ProgramData\\Anaconda3\\envs\\django\\Scripts\\pytest.exe",
+      "django": true
+    },
     {
       "name": "Python: Django",
       "type": "python",
diff --git a/.vscode/settings.json b/.vscode/settings.json
index 09395a1..63d992a 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,3 +1,8 @@
 {
-  "python.formatting.provider": "autopep8"
+  "python.formatting.provider": "autopep8",
+  "python.testing.pytestArgs": [
+    "chat"
+  ],
+  "python.testing.unittestEnabled": false,
+  "python.testing.pytestEnabled": true
 }
\ No newline at end of file
diff --git a/chat/models.py b/chat/models.py
index 33d7339..7c37bfc 100644
--- a/chat/models.py
+++ b/chat/models.py
@@ -4,20 +4,23 @@
 
 # Create your models here.
 
+
 class Utterance(models.Model):
-  utterance_text = models.CharField(max_length=8192)
-  time = models.DateTimeField('Time')
-  
-  def __str__(self):
-    return self.utterance_text
-  
-  def isRecent(self):
-    return self.time >= timezone.now() - datetime.timedelta(days=1)
-  
+    utterance_text = models.CharField(max_length=8192)
+    time = models.DateTimeField('Time')
+
+    def __str__(self):
+        return self.utterance_text
+
+    def is_recent(self):
+        now = timezone.now()
+        recent = now - datetime.timedelta(days=1) <= self.time <= now
+        return recent
+
+
 class Response(models.Model):
-  utterance = models.ForeignKey(Utterance, on_delete=models.CASCADE)
-  response_text = models.CharField(max_length=8192)
-  
-  def __str__(self):
-    return self.response_text
-  
\ No newline at end of file
+    utterance = models.ForeignKey(Utterance, on_delete=models.CASCADE)
+    response_text = models.CharField(max_length=8192)
+
+    def __str__(self):
+        return self.response_text
diff --git a/chat/tests.py b/chat/tests.py
index de8bdc0..7a34e49 100644
--- a/chat/tests.py
+++ b/chat/tests.py
@@ -1,3 +1,32 @@
 from django.test import TestCase
+from django.utils import timezone
+from django.urls import reverse
+import datetime
 
-# Create your tests here.
+from .models import Utterance
+
+
+class UtteranceModelTests(TestCase):
+    def test_is_recent_with_future_time(self):
+        """
+        is_recent() returns False for future utterances
+        """
+        future = timezone.now() + datetime.timedelta(days=30)
+        future_utterance = Utterance(time=future, utterance_text='test')
+        self.assertIs(future_utterance.is_recent(), False)
+
+    def test_is_recent_with_old_utterance(self):
+        """
+        is_recent() returns False for utterances whose time is older than 1 day
+        """
+        day_old = timezone.now() - datetime.timedelta(days=1, seconds=1)
+        old_utterance = Utterance(time=day_old, utterance_text='test')
+        self.assertIs(old_utterance.is_recent(), False)
+
+    def test_is_recent_with_recent_utterance(self):
+        """
+        is_recent() returns True for utterances whose time is within the last day
+        """
+        recent = timezone.now() - datetime.timedelta(hours=23, minutes=59)
+        recent_utterance = Utterance(time=recent, utterance_text='test')
+        self.assertIs(recent_utterance.is_recent(), True)
diff --git a/chat/urls.py b/chat/urls.py
index 5576e84..91b3eab 100644
--- a/chat/urls.py
+++ b/chat/urls.py
@@ -4,7 +4,8 @@
 
 app_name = 'chat'
 urlpatterns = [
-    path('', views.IndexView.as_view(), name='index'),
+    path('', views.session, name='session'),
+    path('list', views.IndexView.as_view(), name='list'),
     path('<int:pk>/', views.DetailView.as_view(), name='detail'),
     path('<int:pk>/results/', views.ResultsView.as_view(), name='results'),
     path('session/', views.session, name='session'),
diff --git a/chat/views.py b/chat/views.py
index 56d033b..8cb20a9 100644
--- a/chat/views.py
+++ b/chat/views.py
@@ -12,7 +12,7 @@ class IndexView(generic.ListView):
     context_object_name = 'recent_utterances'
 
     def get_queryset(self):
-        return Utterance.objects.order_by('-time')[:5]
+        return Utterance.objects.filter(time__lte=timezone.now()).order_by('-time')[:5]
 
 
 class DetailView(generic.DetailView):
diff --git a/db.sqlite3 b/db.sqlite3
index ffb15d9..53ba1ed 100644
Binary files a/db.sqlite3 and b/db.sqlite3 differ
diff --git a/pytest.ini b/pytest.ini
new file mode 100644
index 0000000..be93e6c
--- /dev/null
+++ b/pytest.ini
@@ -0,0 +1,3 @@
+[pytest]
+DJANGO_SETTINGS_MODULE = Amy.settings
+python_files = tests.py test_*.py *_tests.py
\ No newline at end of file