diff --git a/exceptional_situations/tests/test_api.py b/exceptional_situations/tests/test_api.py
index 1278daff..d1f979c4 100644
--- a/exceptional_situations/tests/test_api.py
+++ b/exceptional_situations/tests/test_api.py
@@ -1,7 +1,6 @@
 from datetime import datetime, timedelta
 
 import pytest
-from django.utils import timezone
 from rest_framework.reverse import reverse
 
 SITUATION_LIST_URL = reverse("exceptional_situations:situation-list")
@@ -70,8 +69,8 @@ def test_situation_retrieve(api_client, situations):
 
 
 @pytest.mark.django_db
-def test_situation_filter_by_start_time(api_client, situations):
-    start_time = timezone.now() - timedelta(hours=6)
+def test_situation_filter_by_start_time(api_client, situations, now):
+    start_time = now - timedelta(hours=6)
     response = api_client.get(
         SITUATION_LIST_URL
         + f"?start_time__gt={datetime.strftime(start_time, DATETIME_FORMAT)}"
@@ -84,7 +83,7 @@ def test_situation_filter_by_start_time(api_client, situations):
     )
     assert response.json()["count"] == 1
 
-    start_time = timezone.now() - timedelta(days=2)
+    start_time = now - timedelta(days=2)
     response = api_client.get(
         SITUATION_LIST_URL
         + f"?start_time__gt={datetime.strftime(start_time, DATETIME_FORMAT)}"
@@ -98,8 +97,8 @@ def test_situation_filter_by_start_time(api_client, situations):
 
 
 @pytest.mark.django_db
-def test_situation_filter_by_end_time(api_client, situations):
-    end_time = timezone.now()
+def test_situation_filter_by_end_time(api_client, situations, now):
+    end_time = now
     response = api_client.get(
         SITUATION_LIST_URL
         + f"?end_time__gt={datetime.strftime(end_time, DATETIME_FORMAT)}"
@@ -111,7 +110,7 @@ def test_situation_filter_by_end_time(api_client, situations):
     )
     assert response.json()["count"] == 0
 
-    end_time = timezone.now() - timedelta(days=2)
+    end_time = now - timedelta(days=2)
     response = api_client.get(
         SITUATION_LIST_URL
         + f"?end_time__gt={datetime.strftime(end_time, DATETIME_FORMAT)}"
diff --git a/exceptional_situations/tests/test_models.py b/exceptional_situations/tests/test_models.py
index 0561ce4a..56ee23d1 100644
--- a/exceptional_situations/tests/test_models.py
+++ b/exceptional_situations/tests/test_models.py
@@ -1,20 +1,19 @@
 from datetime import timedelta
 
 import pytest
-from django.utils import timezone
 
 from exceptional_situations.models import Situation, SituationAnnouncement
 
 
 @pytest.mark.django_db
-def test_situation_is_active(situation_types):
-    now = timezone.now()
+def test_situation_is_active(situation_types, now):
 
     announcement_1 = SituationAnnouncement.objects.create(start_time=now, title="test1")
     announcement_2 = SituationAnnouncement.objects.create(start_time=now, title="test2")
     situation = Situation.objects.create(
         release_time=now, situation_type=situation_types.first(), situation_id="TestID"
     )
+    # No announcements, returns False
     assert situation.is_active is False
 
     situation.announcements.add(announcement_1)
@@ -44,8 +43,7 @@ def test_situation_is_active(situation_types):
 
 
 @pytest.mark.django_db
-def test_situation_start_time(situation_types):
-    now = timezone.now()
+def test_situation_start_time(situation_types, now):
     announcement_1 = SituationAnnouncement.objects.create(
         start_time=now, title="starts now"
     )
@@ -61,8 +59,7 @@ def test_situation_start_time(situation_types):
 
 
 @pytest.mark.django_db
-def test_situation_end_time(situation_types):
-    now = timezone.now()
+def test_situation_end_time(situation_types, now):
     announcement_1 = SituationAnnouncement.objects.create(
         start_time=now - timedelta(hours=1),
         end_time=now + timedelta(hours=2),