diff --git a/changedetectionio/notification_service.py b/changedetectionio/notification_service.py
index d478d56eb..356b39e05 100644
--- a/changedetectionio/notification_service.py
+++ b/changedetectionio/notification_service.py
@@ -61,6 +61,7 @@ class NotificationContextData(dict):
         super().__init__({
             'base_url': None,
             'change_datetime': None,
+            'change_datetime_z': None,
             'current_snapshot': None,
             'diff': None,
             'diff_added': None,
@@ -119,6 +120,16 @@ class NotificationContextData(dict):
 
         super().__setitem__(key, value)
 
+def timestamp_to_localtime_iso8601(timestamp):
+    # Interpret timestamp as UTC
+    dt_utc = datetime.datetime.fromtimestamp(int(timestamp), tz=pytz.UTC)
+
+    # Convert to local timezone
+    local_dt = dt_utc.astimezone()
+
+    # Return ISO 8601 format
+    return local_dt.isoformat()
+
 def timestamp_to_localtime(timestamp):
     # Format the date using locale-aware formatting with timezone
     # Pass tz=UTC so fromtimestamp() interprets the epoch correctly as UTC,
@@ -204,6 +215,7 @@ def set_basic_notification_vars(current_snapshot, prev_snapshot, watch, triggere
         'prev_snapshot': prev_snapshot,
         'screenshot': watch.get_screenshot() if watch and watch.get('notification_screenshot') else None,
         'change_datetime': timestamp_to_localtime(timestamp_changed) if timestamp_changed else None,
+        'change_datetime_z': timestamp_to_localtime_iso8601(timestamp_changed) if timestamp_changed else None,
         'triggered_text': triggered_text,
         'uuid': watch.get('uuid') if watch else None,
         'watch_url': watch.get('url') if watch else None,
diff --git a/changedetectionio/templates/_common_fields.html b/changedetectionio/templates/_common_fields.html
index b3cb8a7f1..d89955a26 100644
--- a/changedetectionio/templates/_common_fields.html
+++ b/changedetectionio/templates/_common_fields.html
@@ -44,6 +44,18 @@
                 <td><code>{{ '{{preview_url}}' }}</code></td>
                 <td>{{ _('The URL of the preview page generated by changedetection.io.') }}</td>
             </tr>
+            <tr>
+                <td><code>{{ '{{change_datime}}' }}</code></td>
+                <td>{{ _('Date/time of the change in \'%Y-%m-%d %H:%M:%S %Z\' format') }}</td>
+            </tr>
+            <tr>
+                <td><code>{{ '{{change_datime_z}}' }}</code></td>
+                <td>{{ _('Date/time of the change in ISO-8601 format') }}</td>
+            </tr>
+            <tr>
+                <td><code>{{ '{{diff_url}}' }}</code></td>
+                <td>{{ _('The URL of the diff output for the watch.') }}</td>
+            </tr>
             <tr>
                 <td><code>{{ '{{diff_url}}' }}</code></td>
                 <td>{{ _('The URL of the diff output for the watch.') }}</td>
diff --git a/changedetectionio/tests/test_notification.py b/changedetectionio/tests/test_notification.py
index fbd80960e..f5715b472 100644
--- a/changedetectionio/tests/test_notification.py
+++ b/changedetectionio/tests/test_notification.py
@@ -109,6 +109,7 @@ def test_check_notification(client, live_server, measure_memory_usage, datastore
                                                    "Diff Full: {{diff_full}}\n"
                                                    "Diff as Patch: {{diff_patch}}\n"
                                                    "Change datetime: {{change_datetime}}\n"
+                                                   "Change datetime Z: {{change_datetime_z}}\n"
                                                    ":-)",
                               "notification_screenshot": True,
                               "notification_format": 'text'}
@@ -136,8 +137,6 @@ def test_check_notification(client, live_server, measure_memory_usage, datastore
     assert bytes(notification_url.encode('utf-8')) in res.data
     assert bytes("New ChangeDetection.io Notification".encode('utf-8')) in res.data
 
-
-
     ## Now recheck, and it should have sent the notification
     wait_for_all_checks(client)
     set_modified_response(datastore_path=datastore_path)
@@ -181,11 +180,14 @@ def test_check_notification(client, live_server, measure_memory_usage, datastore
 
     # timestamp worked
     import time
-    from changedetectionio.notification_service import timestamp_to_localtime
+    from changedetectionio.notification_service import timestamp_to_localtime, timestamp_to_localtime_iso8601
     # Could be from a few seconds ago (when the notification was fired vs in this test checking), so check for any
     times_possible = [timestamp_to_localtime(int(time.time()) - i) for i in range(15)]
     assert any(t in notification_submission for t in times_possible)
 
+    times_possible = [timestamp_to_localtime_iso8601(int(time.time()) - i) for i in range(15)]
+    assert any(t in notification_submission for t in times_possible)
+
 
     # We keep PNG screenshots for now
     # IF THIS FAILS YOU SHOULD BE TESTING WITH ENV VAR REMOVE_REQUESTS_OLD_SCREENSHOTS=False