diff --git a/app/config.py b/app/config.py
index b204c229a..0b7fd83aa 100644
--- a/app/config.py
+++ b/app/config.py
@@ -15,8 +15,7 @@ class Config(object):
     HEADER_COLOUR = '#81878b'  # mix(govuk-colour("dark-grey"), govuk-colour("mid-grey"))
     LOGO_CDN_DOMAIN = 'static-logos.notifications.service.gov.uk'  # TODO use our own CDN
     ASSETS_DEBUG = False
-    TIMEZONE = getenv('TIMEZONE', 'America/New_York')
-    PY_TIMEZONE = pytz.timezone(TIMEZONE)
+    PY_TIMEZONE = pytz.utc
 
     # Credentials
     ADMIN_CLIENT_SECRET = getenv('ADMIN_CLIENT_SECRET')
diff --git a/app/formatters.py b/app/formatters.py
index 3e6b44320..ce84f3336 100644
--- a/app/formatters.py
+++ b/app/formatters.py
@@ -18,7 +18,6 @@ from notifications_utils.recipients import (
     validate_phone_number,
 )
 from notifications_utils.take import Take
-from notifications_utils.timezones import convert_utc_to_local_timezone
 
 from app.utils.time import parse_naive_dt
 
@@ -77,19 +76,19 @@ def format_datetime_numeric(date):
 
 def format_date_numeric(date):
     date = parse_naive_dt(date)
-    return convert_utc_to_local_timezone(date).strftime('%Y-%m-%d')
+    return date.strftime('%Y-%m-%d')
 
 
 def format_time_24h(date):
     date = parse_naive_dt(date)
-    return convert_utc_to_local_timezone(date).strftime('%H:%M')
+    return date.strftime('%H:%M')
 
 
 def get_human_day(time, date_prefix=''):
 
     #  Add 1 minute to transform 00:00 into ‘midnight today’ instead of ‘midnight tomorrow’
     time = parse_naive_dt(time)
-    date = (convert_utc_to_local_timezone(time) - timedelta(minutes=1)).date()
+    date = (time - timedelta(minutes=1)).date()
     now = datetime.now(current_app.config['PY_TIMEZONE'])
 
     if date == (now + timedelta(days=1)).date():
@@ -116,24 +115,24 @@ def format_time(date):
         '12:00AM': 'Midnight',
         '12:00PM': 'Noon'
     }.get(
-        convert_utc_to_local_timezone(date).strftime('%-I:%M%p'),
-        convert_utc_to_local_timezone(date).strftime('%-I:%M%p')
+        date.strftime('%-I:%M%p'),
+        date.strftime('%-I:%M%p')
     ).lower()
 
 
 def format_date(date):
     date = parse_naive_dt(date)
-    return convert_utc_to_local_timezone(date).strftime('%A %d %B %Y')
+    return date.strftime('%A %d %B %Y')
 
 
 def format_date_normal(date):
     date = parse_naive_dt(date)
-    return convert_utc_to_local_timezone(date).strftime('%d %B %Y').lstrip('0')
+    return date.strftime('%d %B %Y').lstrip('0')
 
 
 def format_date_short(date):
     date = parse_naive_dt(date)
-    return _format_datetime_short(convert_utc_to_local_timezone(date))
+    return _format_datetime_short(date)
 
 
 def format_date_human(date):
@@ -149,7 +148,7 @@ def format_datetime_human(date, date_prefix=''):
 
 def format_day_of_week(date):
     date = parse_naive_dt(date)
-    return convert_utc_to_local_timezone(date).strftime('%A')
+    return date.strftime('%A')
 
 
 def _format_datetime_short(datetime):
diff --git a/app/main/forms.py b/app/main/forms.py
index 3b8f3718e..cd3349d62 100644
--- a/app/main/forms.py
+++ b/app/main/forms.py
@@ -73,7 +73,7 @@ from app.utils.user_permissions import all_ui_permissions, permission_options
 def get_time_value_and_label(future_time):
     return (
         future_time.astimezone(pytz.utc).replace(tzinfo=None).isoformat(),
-        '{} at {} ET'.format(
+        '{} at {} UTC'.format(
             get_human_day(future_time.astimezone(current_app.config['PY_TIMEZONE'])),
             get_human_time(future_time.astimezone(current_app.config['PY_TIMEZONE']))
         )
diff --git a/app/models/user.py b/app/models/user.py
index b99e30a2e..bb1403e6c 100644
--- a/app/models/user.py
+++ b/app/models/user.py
@@ -3,7 +3,6 @@ from datetime import datetime
 from flask import abort, current_app, request, session
 from flask_login import AnonymousUserMixin, UserMixin, login_user, logout_user
 from notifications_python_client.errors import HTTPError
-from notifications_utils.timezones import convert_utc_to_local_timezone
 from werkzeug.utils import cached_property
 
 from app.event_handlers import (
@@ -129,11 +128,7 @@ class User(JSONModel, UserMixin):
             return False
         datetime_string = parse_naive_dt(datetime_string)
         changed = parse_naive_dt(self.password_changed_at)
-        return convert_utc_to_local_timezone(
-            changed
-        ) > convert_utc_to_local_timezone(
-            datetime_string
-        )
+        return changed > datetime_string
 
     def set_permissions(self, service_id, permissions, folder_permissions, set_by_id):
         user_api_client.set_user_permissions(
diff --git a/app/templates/views/message-status.html b/app/templates/views/message-status.html
index aef6c9feb..43f815d38 100644
--- a/app/templates/views/message-status.html
+++ b/app/templates/views/message-status.html
@@ -12,6 +12,12 @@
   <p>Notify’s real-time dashboard lets you check the status of any message.</p>
   <p>For <a class="govuk-link govuk-link--no-visited-state" href="{{ url_for("main.security") }}">security</a>, this information is only available for seven days after a message has been sent. You can download a report, including a list of sent messages, for your own records.</p>
   <p>This page describes the statuses you’ll see when you’re signed in to Notify.</p>
+
+  <h2 id="text-message-timezones" class="heading-medium">A note about timezones</h2>
+
+  <p>Notify currently uses UTC (Coordinated Universal Time) for managing and displaying all dates and times in the system.  This means that when you're scheduling messages to send later, or are looking at the time a message was sent, it will be in the UTC timezone.</p>
+
+  <p>You can refer to <a href="https://en.wikipedia.org/wiki/Time_in_the_United_States#United_States_and_regional_time_zones">this chart for help</a> with converting UTC times to your local timezone.</p>
   <!-- <p>If you’re using the Notify API, read our <a class="govuk-link govuk-link--no-visited-state" href="{{ url_for('.documentation') }}">documentation</a> for a list of API statuses.<p> 
 
   <h2 id="email-statuses" class="heading-medium">Emails</h2>
diff --git a/app/templates/views/notifications.html b/app/templates/views/notifications.html
index a34b886f0..598ab743e 100644
--- a/app/templates/views/notifications.html
+++ b/app/templates/views/notifications.html
@@ -61,6 +61,11 @@
       &emsp;
       Data available for {{ partials.service_data_retention_days }} days
     </p>
+    <p class="font-body-sm">
+      <a href="https://en.wikipedia.org/wiki/Time_in_the_United_States#United_States_and_regional_time_zones">View timezone chart</a>
+      &emsp;
+      For help with understanding and converting UTC times
+    </p>
   {% endif %}
 
   {{ ajax_block(
diff --git a/app/templates/views/notifications/notification.html b/app/templates/views/notifications/notification.html
index 1e637ead6..b51c20fc2 100644
--- a/app/templates/views/notifications/notification.html
+++ b/app/templates/views/notifications/notification.html
@@ -35,7 +35,7 @@
       {% elif created_by %}
         by {{ created_by.name }}
       {% endif %}
-      {{ created_at|format_datetime_human }}
+      {{ created_at|format_datetime_human }} UTC
     </p>
 
     <div class="">
diff --git a/tests/app/main/forms/test_choose_time_form.py b/tests/app/main/forms/test_choose_time_form.py
index 36ea63976..2a4ce95d7 100644
--- a/tests/app/main/forms/test_choose_time_form.py
+++ b/tests/app/main/forms/test_choose_time_form.py
@@ -4,28 +4,28 @@ from freezegun import freeze_time
 from app.main.forms import ChooseTimeForm
 
 
-@freeze_time("2016-01-01 16:09:00.061258")
+@freeze_time("2016-01-01 11:09:00.061258")
 def test_form_contains_next_24h(notify_admin):
 
     choices = ChooseTimeForm().scheduled_for.choices
 
     # Friday
     assert choices[0] == ('', 'Now')
-    assert choices[1] == ('2016-01-01T17:00:00', 'Today at noon ET')
-    assert choices[13] == ('2016-01-02T05:00:00', 'Today at midnight ET')
+    assert choices[1] == ('2016-01-01T12:00:00', 'Today at noon UTC')
+    assert choices[13] == ('2016-01-02T00:00:00', 'Today at midnight UTC')
 
     # Saturday
-    assert choices[14] == ('2016-01-02T06:00:00', 'Tomorrow at 1am ET')
-    assert choices[37] == ('2016-01-03T05:00:00', 'Tomorrow at midnight ET')
+    assert choices[14] == ('2016-01-02T01:00:00', 'Tomorrow at 1am UTC')
+    assert choices[37] == ('2016-01-03T00:00:00', 'Tomorrow at midnight UTC')
 
     # Sunday
-    assert choices[38] == ('2016-01-03T06:00:00', 'Sunday at 1am ET')
+    assert choices[38] == ('2016-01-03T01:00:00', 'Sunday at 1am UTC')
 
     # Monday
-    assert choices[62] == ('2016-01-04T06:00:00', 'Monday at 1am ET')
-    assert choices[80] == ('2016-01-05T00:00:00', 'Monday at 7pm ET')
-    assert choices[84] == ('2016-01-05T04:00:00', 'Monday at 11pm ET')
-    assert choices[85] == ('2016-01-05T05:00:00', 'Monday at midnight ET')
+    assert choices[62] == ('2016-01-04T01:00:00', 'Monday at 1am UTC')
+    assert choices[80] == ('2016-01-04T19:00:00', 'Monday at 7pm UTC')
+    assert choices[84] == ('2016-01-04T23:00:00', 'Monday at 11pm UTC')
+    assert choices[85] == ('2016-01-05T00:00:00', 'Monday at midnight UTC')
 
     with pytest.raises(IndexError):
         assert choices[
diff --git a/tests/app/main/test_formatters.py b/tests/app/main/test_formatters.py
index 2f5f6016b..20597b735 100644
--- a/tests/app/main/test_formatters.py
+++ b/tests/app/main/test_formatters.py
@@ -58,38 +58,38 @@ def test_format_number_in_pounds_as_currency(input_number, formatted_number):
 @pytest.mark.parametrize('time, human_readable_datetime', [
     # incoming in UTC, outgoing in local timezone
     # this test assumes timezone is America/New_York
-    ('2018-03-14 09:00', '14 March at 5:00am'),
-    ('2018-03-14 19:00', '14 March at 3:00pm'),
+    ('2018-03-14 09:00', '14 March at 9:00am'),
+    ('2018-03-14 19:00', '14 March at 7:00pm'),
 
-    ('2018-03-15 09:00', '15 March at 5:00am'),
-    ('2018-03-15 19:00', '15 March at 3:00pm'),
+    ('2018-03-15 09:00', '15 March at 9:00am'),
+    ('2018-03-15 19:00', '15 March at 7:00pm'),
 
-    ('2018-03-19 09:00', '19 March at 5:00am'),
-    ('2018-03-19 19:00', '19 March at 3:00pm'),
-    ('2018-03-19 23:59', '19 March at 7:59pm'),
+    ('2018-03-19 09:00', '19 March at 9:00am'),
+    ('2018-03-19 19:00', '19 March at 7:00pm'),
+    ('2018-03-19 23:59', '19 March at 11:59pm'),
 
-    ('2018-03-20 04:00', '19 March at midnight'),  # we specifically refer to 00:00 as belonging to the day before.
-    ('2018-03-20 04:01', 'yesterday at 12:01am'),
-    ('2018-03-20 09:00', 'yesterday at 5:00am'),
-    ('2018-03-20 19:00', 'yesterday at 3:00pm'),
-    ('2018-03-20 23:59', 'yesterday at 7:59pm'),
+    ('2018-03-20 00:00', '19 March at midnight'),  # we specifically refer to 00:00 as belonging to the day before.
+    ('2018-03-20 04:01', 'yesterday at 4:01am'),
+    ('2018-03-20 09:00', 'yesterday at 9:00am'),
+    ('2018-03-20 19:00', 'yesterday at 7:00pm'),
+    ('2018-03-20 23:59', 'yesterday at 11:59pm'),
 
-    ('2018-03-21 04:00', 'yesterday at midnight'),  # we specifically refer to 00:00 as belonging to the day before.
-    ('2018-03-21 04:01', 'today at 12:01am'),
-    ('2018-03-21 09:00', 'today at 5:00am'),
-    ('2018-03-21 16:00', 'today at noon'),
-    ('2018-03-21 19:00', 'today at 3:00pm'),
-    ('2018-03-21 23:59', 'today at 7:59pm'),
+    ('2018-03-21 00:00', 'yesterday at midnight'),  # we specifically refer to 00:00 as belonging to the day before.
+    ('2018-03-21 04:01', 'today at 4:01am'),
+    ('2018-03-21 09:00', 'today at 9:00am'),
+    ('2018-03-21 12:00', 'today at noon'),
+    ('2018-03-21 19:00', 'today at 7:00pm'),
+    ('2018-03-21 23:59', 'today at 11:59pm'),
 
-    ('2018-03-22 04:00', 'today at midnight'),  # we specifically refer to 00:00 as belonging to the day before.
-    ('2018-03-22 04:01', 'tomorrow at 12:01am'),
-    ('2018-03-22 09:00', 'tomorrow at 5:00am'),
-    ('2018-03-22 19:00', 'tomorrow at 3:00pm'),
-    ('2018-03-22 23:59', 'tomorrow at 7:59pm'),
+    ('2018-03-22 00:00', 'today at midnight'),  # we specifically refer to 00:00 as belonging to the day before.
+    ('2018-03-22 04:01', 'tomorrow at 4:01am'),
+    ('2018-03-22 09:00', 'tomorrow at 9:00am'),
+    ('2018-03-22 19:00', 'tomorrow at 7:00pm'),
+    ('2018-03-22 23:59', 'tomorrow at 11:59pm'),
 
-    ('2018-03-23 04:01', '23 March at 12:01am'),
-    ('2018-03-23 09:00', '23 March at 5:00am'),
-    ('2018-03-23 19:00', '23 March at 3:00pm'),
+    ('2018-03-23 04:01', '23 March at 4:01am'),
+    ('2018-03-23 09:00', '23 March at 9:00am'),
+    ('2018-03-23 19:00', '23 March at 7:00pm'),
 
 ])
 def test_format_datetime_relative(time, human_readable_datetime):
diff --git a/tests/app/main/views/test_activity.py b/tests/app/main/views/test_activity.py
index d727ce636..6a2396d6b 100644
--- a/tests/app/main/views/test_activity.py
+++ b/tests/app/main/views/test_activity.py
@@ -153,7 +153,7 @@ def test_can_show_notifications(
     assert normalize_spaces(
         first_row.select_one('.table-field-right-aligned .align-with-message-body').text
     ) == (
-        'Delivered 1 January at 1:01am'
+        'Delivered 1 January at 6:01am'
     )
 
     assert page_title in page.h1.text.strip()
@@ -623,7 +623,7 @@ def test_redacts_templates_that_should_be_redacted(
     )
 
 
-@freeze_time("2017-09-27 16:30:00.000000")
+@freeze_time("2017-09-27 12:30:00.000000")
 @pytest.mark.parametrize(
     "message_type, status, expected_hint_status, single_line", [
         ('email', 'created', 'Sending since 27 September at 12:30pm', True),
diff --git a/tests/app/main/views/test_conversation.py b/tests/app/main/views/test_conversation.py
index 28b94e159..2d151af65 100644
--- a/tests/app/main/views/test_conversation.py
+++ b/tests/app/main/views/test_conversation.py
@@ -73,7 +73,7 @@ def test_get_user_phone_number_raises_if_both_api_requests_fail(mocker):
     (True, 'Hello hidden'),
     (False, 'Hello Jo'),
 ])
-@freeze_time("2012-01-01 05:00:00")
+@freeze_time("2012-01-01 00:00:00")
 def test_view_conversation(
     client_request,
     mocker,
diff --git a/tests/app/main/views/test_dashboard.py b/tests/app/main/views/test_dashboard.py
index 046f0fbec..7d4bbb669 100644
--- a/tests/app/main/views/test_dashboard.py
+++ b/tests/app/main/views/test_dashboard.py
@@ -370,7 +370,7 @@ def test_view_inbox_updates(
     mock_get_partials.assert_called_once_with(SERVICE_ONE_ID)
 
 
-@freeze_time("2016-07-01 18:00")
+@freeze_time("2016-07-01 12:00")
 def test_download_inbox(
     client_request,
     mock_get_inbound_sms,
@@ -389,14 +389,14 @@ def test_download_inbox(
     )
     assert response.get_data(as_text=True) == (
         'Phone number,Message,Received\r\n'
-        '(202) 867-5300,message-1,2016-07-01 13:00\r\n'
-        '(202) 867-5300,message-2,2016-07-01 12:59\r\n'
-        '(202) 867-5300,message-3,2016-07-01 12:59\r\n'
-        '(202) 867-5302,message-4,2016-07-01 10:59\r\n'
-        '+33 1 12 34 56 78,message-5,2016-07-01 08:59\r\n'
-        '(202) 555-0104,message-6,2016-07-01 06:59\r\n'
-        '(202) 555-0104,message-7,2016-07-01 04:59\r\n'
-        '+682 12345,message-8,2016-07-01 04:59\r\n'
+        '(202) 867-5300,message-1,2016-07-01 11:00\r\n'
+        '(202) 867-5300,message-2,2016-07-01 10:59\r\n'
+        '(202) 867-5300,message-3,2016-07-01 10:59\r\n'
+        '(202) 867-5302,message-4,2016-07-01 08:59\r\n'
+        '+33 1 12 34 56 78,message-5,2016-07-01 06:59\r\n'
+        '(202) 555-0104,message-6,2016-07-01 04:59\r\n'
+        '(202) 555-0104,message-7,2016-07-01 02:59\r\n'
+        '+682 12345,message-8,2016-07-01 02:59\r\n'
     )
 
 
@@ -618,7 +618,7 @@ def test_monthly_has_equal_length_tables(
     assert page.select_one('.table-field-headings th').get('width') == "33%"
 
 
-@freeze_time("2016-01-01 11:09:00.061258")
+@freeze_time("2016-01-01 1:09:00.061258")
 def test_should_show_upcoming_jobs_on_dashboard(
     client_request,
     mock_get_service_templates,
@@ -648,7 +648,7 @@ def test_should_show_upcoming_jobs_on_dashboard(
         page.select_one('a.banner-dashboard').text
     ) == (
         '2 files waiting to send '
-        'sending starts today at 6:09am'
+        'sending starts today at 11:09am'
     )
 
     assert page.select_one('a.banner-dashboard')['href'] == url_for(
diff --git a/tests/app/main/views/test_history.py b/tests/app/main/views/test_history.py
index 604d98dd1..08859ede6 100644
--- a/tests/app/main/views/test_history.py
+++ b/tests/app/main/views/test_history.py
@@ -9,34 +9,34 @@ from tests.conftest import SERVICE_ONE_ID, normalize_spaces
         (
             '12 December',
             (
-                'Test User 1:13pm '
+                'Test User 6:13pm '
                 'Renamed this service from ‘Before lunch’ to ‘After lunch’ '
-                'Test User 12:12pm '
+                'Test User 5:12pm '
                 'Renamed this service from ‘Example service’ to ‘Before lunch’'
             ),
         ),
         (
             '11 November',
             (
-                'Test User 12:12pm '
+                'Test User 5:12pm '
                 'Revoked the ‘Bad key’ API key'
             ),
         ),
         (
             '11 November 2011',
             (
-                'Test User 11:11am '
+                'Test User 4:11pm '
                 'Created an API key called ‘Bad key’'
             ),
         ),
         (
             '10 October 2010',
             (
-                'Test User 11:10am '
+                'Test User 3:10pm '
                 'Created an API key called ‘Good key’ '
-                'Test User 10:09am '
+                'Test User 2:09pm '
                 'Created an API key called ‘Key event returned in non-chronological order’ '
-                'Test User 2:01am '
+                'Test User 6:01am '
                 'Created this service and called it ‘Example service’'
             ),
         ),
@@ -45,23 +45,23 @@ from tests.conftest import SERVICE_ONE_ID, normalize_spaces
         (
             '11 November',
             (
-                'Test User 12:12pm '
+                'Test User 5:12pm '
                 'Revoked the ‘Bad key’ API key'
             ),
         ),
         (
             '11 November 2011',
             (
-                'Test User 11:11am '
+                'Test User 4:11pm '
                 'Created an API key called ‘Bad key’'
             ),
         ),
         (
             '10 October 2010',
             (
-                'Test User 11:10am '
+                'Test User 3:10pm '
                 'Created an API key called ‘Good key’ '
-                'Test User 10:09am '
+                'Test User 2:09pm '
                 'Created an API key called ‘Key event returned in non-chronological order’'
             ),
         ),
@@ -70,22 +70,22 @@ from tests.conftest import SERVICE_ONE_ID, normalize_spaces
         (
             '12 December',
             (
-                'Test User 1:13pm '
+                'Test User 6:13pm '
                 'Renamed this service from ‘Before lunch’ to ‘After lunch’ '
-                'Test User 12:12pm '
+                'Test User 5:12pm '
                 'Renamed this service from ‘Example service’ to ‘Before lunch’'
             ),
         ),
         (
             '10 October 2010',
             (
-                'Test User 2:01am '
+                'Test User 6:01am '
                 'Created this service and called it ‘Example service’'
             ),
         ),
     ]),
 ))
-@freeze_time("2012-01-01 06:01:01")
+@freeze_time("2012-01-01 01:01:01")
 def test_history(
     client_request,
     mock_get_service_history,
diff --git a/tests/app/main/views/test_jobs.py b/tests/app/main/views/test_jobs.py
index 572172448..98c74eccb 100644
--- a/tests/app/main/views/test_jobs.py
+++ b/tests/app/main/views/test_jobs.py
@@ -60,7 +60,7 @@ def test_old_jobs_hub_redirects(
         )
     ]
 )
-@freeze_time("2016-01-01 16:09:00.061258")
+@freeze_time("2016-01-01 11:09:00.061258")
 def test_should_show_page_for_one_job(
     client_request,
     mock_get_service_template,
@@ -329,7 +329,7 @@ def test_should_show_scheduled_job(
     )
 
     assert normalize_spaces(page.select('main p')[1].text) == (
-        'Sending Two week reminder today at midnight'
+        'Sending Two week reminder tomorrow at 5:00am'
     )
     assert page.select('main p a')[0]['href'] == url_for(
         'main.view_template_version',
@@ -402,8 +402,8 @@ def test_should_show_updates_for_one_job_as_json(
     assert '2021234567' in content['notifications']
     assert 'Status' in content['notifications']
     assert 'Delivered' in content['notifications']
-    assert '12:01am' in content['notifications']
-    assert 'Sent by Test User on 1 January at midnight' in content['status']
+    assert '5:01am' in content['notifications']
+    assert 'Sent by Test User on 1 January at 5:00am' in content['status']
 
 
 @freeze_time("2016-01-01 05:00:00.000001")
@@ -439,8 +439,8 @@ def test_should_show_updates_for_scheduled_job_as_json(
     assert '2021234567' in content['notifications']
     assert 'Status' in content['notifications']
     assert 'Delivered' in content['notifications']
-    assert '12:01am' in content['notifications']
-    assert 'Sent by Test User on 1 June at 4:00pm' in content['status']
+    assert '5:01am' in content['notifications']
+    assert 'Sent by Test User on 1 June at 8:00pm' in content['status']
 
 
 @pytest.mark.parametrize(
diff --git a/tests/app/main/views/test_notifications.py b/tests/app/main/views/test_notifications.py
index df6bd6c31..857b215cd 100644
--- a/tests/app/main/views/test_notifications.py
+++ b/tests/app/main/views/test_notifications.py
@@ -182,16 +182,16 @@ def test_notification_status_shows_expected_back_link(
 
 @pytest.mark.parametrize('time_of_viewing_page, expected_message', (
     ('2012-01-01 06:01', (
-        "‘sample template’ was sent by Test User today at 1:01am"
+        "‘sample template’ was sent by Test User today at 6:01am UTC"
     )),
     ('2012-01-02 06:01', (
-        "‘sample template’ was sent by Test User yesterday at 1:01am"
+        "‘sample template’ was sent by Test User yesterday at 6:01am UTC"
     )),
     ('2012-01-03 06:01', (
-        "‘sample template’ was sent by Test User on 1 January at 1:01am"
+        "‘sample template’ was sent by Test User on 1 January at 6:01am UTC"
     )),
     ('2013-01-03 06:01', (
-        "‘sample template’ was sent by Test User on 1 January 2012 at 1:01am"
+        "‘sample template’ was sent by Test User on 1 January 2012 at 6:01am UTC"
     )),
 ))
 def test_notification_page_doesnt_link_to_template_in_tour(
diff --git a/tests/app/main/views/test_performance.py b/tests/app/main/views/test_performance.py
index b7a560b79..24eaa0ca7 100644
--- a/tests/app/main/views/test_performance.py
+++ b/tests/app/main/views/test_performance.py
@@ -130,13 +130,13 @@ def test_should_render_performance_page(
         ''
         'Messages sent since May 2023 '
         'Date Emails Text messages '
+        '27 February 2021 1 2 '
         '26 February 2021 1 2 '
         '25 February 2021 1 2 '
         '24 February 2021 1 2 '
         '23 February 2021 1 2 '
         '22 February 2021 1 2 '
-        '21 February 2021 1 2 '
-        '20 February 2021 1,234,567 123,456 '
+        '21 February 2021 1,234,567 123,456 '
 
 
         'Only showing the last 7 days '
@@ -145,13 +145,13 @@ def test_should_render_performance_page(
         '98.31% on average '
         'Messages sent within 10 seconds '
         'Date Percentage '
-        '26 February 2021 98.60% '
-        '25 February 2021 100.00% '
-        '24 February 2021 99.99% '
-        '23 February 2021 100.00% '
-        '22 February 2021 95.00% '
-        '21 February 2021 95.30% '
-        '20 February 2021 99.25% '
+        '27 February 2021 98.60% '
+        '26 February 2021 100.00% '
+        '25 February 2021 99.99% '
+        '24 February 2021 100.00% '
+        '23 February 2021 95.00% '
+        '22 February 2021 95.30% '
+        '21 February 2021 99.25% '
         'Only showing the last 7 days '
         ''
         'Organizations using Notify '
diff --git a/tests/app/main/views/test_providers.py b/tests/app/main/views/test_providers.py
index 341cbec82..b9e2b21aa 100644
--- a/tests/app/main/views/test_providers.py
+++ b/tests/app/main/views/test_providers.py
@@ -188,7 +188,7 @@ def test_view_providers_shows_all_providers(
     assert table_data[1].text.strip() == "20"
     assert table_data[2].text.strip() == "42"
     assert table_data[3].text.strip() == "True"
-    assert table_data[4].text.strip() == "16 January at 10:20am"
+    assert table_data[4].text.strip() == "16 January at 3:20pm"
     assert table_data[5].text.strip() == "Test User"
 
     domestic_sms_second_row = domestic_sms_table.tbody.find_all('tr')[1]
diff --git a/tests/app/main/views/test_templates.py b/tests/app/main/views/test_templates.py
index ca2e974a4..74494633e 100644
--- a/tests/app/main/views/test_templates.py
+++ b/tests/app/main/views/test_templates.py
@@ -472,7 +472,7 @@ def test_caseworker_sees_template_page_if_template_is_deleted(
 
     content = str(page)
     assert url_for("main.send_one_off", service_id=SERVICE_ONE_ID, template_id=fake_uuid) not in content
-    assert page.select('p.hint')[0].text.strip() == 'This template was deleted today at 10:00am.'
+    assert page.select('p.hint')[0].text.strip() == 'This template was deleted today at 3:00pm.'
 
     mock_get_deleted_template.assert_called_with(SERVICE_ONE_ID, template_id, None)
 
@@ -1575,7 +1575,7 @@ def test_should_show_page_for_a_deleted_template(
     content = str(page)
     assert url_for("main.edit_service_template", service_id=SERVICE_ONE_ID, template_id=fake_uuid) not in content
     assert url_for("main.send_one_off", service_id=SERVICE_ONE_ID, template_id=fake_uuid) not in content
-    assert page.select('p.hint')[0].text.strip() == 'This template was deleted today at 10:00am.'
+    assert page.select('p.hint')[0].text.strip() == 'This template was deleted today at 3:00pm.'
     assert 'Delete this template' not in page.select_one('main').text
 
     mock_get_deleted_template.assert_called_with(SERVICE_ONE_ID, template_id, None)
diff --git a/tests/app/main/views/uploads/test_upload_hub.py b/tests/app/main/views/uploads/test_upload_hub.py
index a85394722..6294f973e 100644
--- a/tests/app/main/views/uploads/test_upload_hub.py
+++ b/tests/app/main/views/uploads/test_upload_hub.py
@@ -48,7 +48,7 @@ def test_get_upload_hub_page(
 
     assert normalize_spaces(uploads[0].text.strip()) == (
         'some.csv '
-        'Sent 1 January 2016 at 6:09am '
+        'Sent 1 January 2016 at 11:09am '
         '0 sending 8 delivered 2 failed'
     )
     assert uploads[0].select_one('a.file-list-filename-large')['href'] == (
@@ -79,12 +79,12 @@ def test_uploads_page_shows_scheduled_jobs(
         ),
         (
             'even_later.csv '
-            'Sending 1 January 2016 at 6:09pm '
+            'Sending 1 January 2016 at 11:09pm '
             '1 text message waiting to send'
         ),
         (
             'send_me_later.csv '
-            'Sending 1 January 2016 at 6:09am '
+            'Sending 1 January 2016 at 11:09am '
             '1 text message waiting to send'
         ),
     ]