diff --git a/.github/workflows/actions_ci.yml b/.github/workflows/actions_ci.yml
index 64e69e51f..f8ba70c61 100644
--- a/.github/workflows/actions_ci.yml
+++ b/.github/workflows/actions_ci.yml
@@ -61,7 +61,7 @@ jobs:
       changesFound: ${{ steps.filter.outputs.changesFound }}
     steps:
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
-      - uses: AurorNZ/paths-filter@7c547bdd24124b0d69e07c96b62fd7fec5ced19a
+      - uses: AurorNZ/paths-filter@3b1f3abc3371cca888d8eb03dfa70bc8a9867629
         id: filter
         with:
           filters: |
diff --git a/.github/workflows/cli_ci.yml b/.github/workflows/cli_ci.yml
index 9ea160754..714c7a0a1 100644
--- a/.github/workflows/cli_ci.yml
+++ b/.github/workflows/cli_ci.yml
@@ -51,7 +51,7 @@ jobs:
       changesFound: ${{ steps.filter.outputs.changesFound }}
     steps:
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
-      - uses: AurorNZ/paths-filter@7c547bdd24124b0d69e07c96b62fd7fec5ced19a
+      - uses: AurorNZ/paths-filter@3b1f3abc3371cca888d8eb03dfa70bc8a9867629
         id: filter
         with:
           filters: |
diff --git a/.github/workflows/integration_tests_app_ci.yml b/.github/workflows/integration_tests_app_ci.yml
index 99a877dae..c95d99c45 100644
--- a/.github/workflows/integration_tests_app_ci.yml
+++ b/.github/workflows/integration_tests_app_ci.yml
@@ -44,7 +44,7 @@ jobs:
       changesFound: ${{ steps.filter.outputs.changesFound }}
     steps:
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
-      - uses: AurorNZ/paths-filter@7c547bdd24124b0d69e07c96b62fd7fec5ced19a
+      - uses: AurorNZ/paths-filter@3b1f3abc3371cca888d8eb03dfa70bc8a9867629
         id: filter
         with:
           filters: |
diff --git a/.github/workflows/safe_app_ci.yml b/.github/workflows/safe_app_ci.yml
index 95657c4ec..db2ff959c 100644
--- a/.github/workflows/safe_app_ci.yml
+++ b/.github/workflows/safe_app_ci.yml
@@ -65,7 +65,7 @@ jobs:
       changesFound: ${{ steps.filter.outputs.changesFound }}
     steps:
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
-      - uses: AurorNZ/paths-filter@7c547bdd24124b0d69e07c96b62fd7fec5ced19a
+      - uses: AurorNZ/paths-filter@3b1f3abc3371cca888d8eb03dfa70bc8a9867629
         id: filter
         with:
           filters: |
diff --git a/.github/workflows/safe_website_ci.yml b/.github/workflows/safe_website_ci.yml
index 6e1d93dbd..8699b10da 100644
--- a/.github/workflows/safe_website_ci.yml
+++ b/.github/workflows/safe_website_ci.yml
@@ -65,7 +65,7 @@ jobs:
       changesFound: ${{ steps.filter.outputs.changesFound }}
     steps:
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
-      - uses: AurorNZ/paths-filter@7c547bdd24124b0d69e07c96b62fd7fec5ced19a
+      - uses: AurorNZ/paths-filter@3b1f3abc3371cca888d8eb03dfa70bc8a9867629
         id: filter
         with:
           filters: |
diff --git a/.github/workflows/unsafe_app_ci.yml b/.github/workflows/unsafe_app_ci.yml
index 826d72439..d6ce5d70c 100644
--- a/.github/workflows/unsafe_app_ci.yml
+++ b/.github/workflows/unsafe_app_ci.yml
@@ -62,7 +62,7 @@ jobs:
       pull-requests: write
     steps:
       - name: Remove "safe to test" label, if PR is from a fork
-        uses: SharezoneApp/remove-safe-to-test-label@228977e0ec39c61eef543d130927065940d56907
+        uses: SharezoneApp/remove-safe-to-test-label@91b378205db41bb08dde8e4c4f2685847eb3d168
 
   # We can't use the official "paths" filter because it has no support for merge
   # groups and we would need some kind of fallback CI when a check is required
@@ -83,7 +83,7 @@ jobs:
           # Because we are using the "pull_request_target" event, we need to
           # checkout the PR head commit instead of the merge commit.
           ref: ${{ github.event.pull_request.head.sha }}
-      - uses: AurorNZ/paths-filter@7c547bdd24124b0d69e07c96b62fd7fec5ced19a
+      - uses: AurorNZ/paths-filter@3b1f3abc3371cca888d8eb03dfa70bc8a9867629
         id: filter
         with:
           filters: |
diff --git a/.github/workflows/unsafe_website_ci.yml b/.github/workflows/unsafe_website_ci.yml
index bd6af7683..b222365ee 100644
--- a/.github/workflows/unsafe_website_ci.yml
+++ b/.github/workflows/unsafe_website_ci.yml
@@ -62,7 +62,7 @@ jobs:
       pull-requests: write
     steps:
       - name: Remove "safe to test" label, if PR is from a fork
-        uses: SharezoneApp/remove-safe-to-test-label@228977e0ec39c61eef543d130927065940d56907
+        uses: SharezoneApp/remove-safe-to-test-label@91b378205db41bb08dde8e4c4f2685847eb3d168
 
   # We can't use the official "paths" filter because it has no support for merge
   # groups and we would need some kind of fallback CI when a check is required
@@ -83,7 +83,7 @@ jobs:
           # Because we are using the "pull_request_target" event, we need to
           # checkout the PR head commit instead of the merge commit.
           ref: ${{ github.event.pull_request.head.sha }}
-      - uses: AurorNZ/paths-filter@7c547bdd24124b0d69e07c96b62fd7fec5ced19a
+      - uses: AurorNZ/paths-filter@3b1f3abc3371cca888d8eb03dfa70bc8a9867629
         id: filter
         with:
           filters: |
diff --git a/app/lib/homework/homework_dialog/homework_dialog.dart b/app/lib/homework/homework_dialog/homework_dialog.dart
index a83362fb6..b31c98ba1 100644
--- a/app/lib/homework/homework_dialog/homework_dialog.dart
+++ b/app/lib/homework/homework_dialog/homework_dialog.dart
@@ -1190,7 +1190,10 @@ class _SubmissionsSwitchBase extends StatelessWidget {
                   },
                   trailing: Padding(
                     padding: const EdgeInsets.only(right: 8),
-                    child: Text(time.toString()),
+                    child: Text(
+                      time.toString(),
+                      style: const TextStyle(fontSize: 14),
+                    ),
                   ),
                 )
               : Container(),
diff --git a/app/lib/timetable/src/bloc/timetable_selection_bloc.dart b/app/lib/timetable/src/bloc/timetable_selection_bloc.dart
index c3a811cad..decdd2874 100644
--- a/app/lib/timetable/src/bloc/timetable_selection_bloc.dart
+++ b/app/lib/timetable/src/bloc/timetable_selection_bloc.dart
@@ -60,6 +60,9 @@ class TimetableSelectionBloc extends BlocBase {
     Course course,
   ) {
     final lesson = Lesson(
+      // The 'createdOn' field will be added in the gateway because we use
+      // serverTimestamp().
+      createdOn: null,
       weekday: emptyPeriodSelection.date.weekDayEnum,
       weektype: emptyPeriodSelection.weekType,
       startTime: emptyPeriodSelection.period.startTime,
diff --git a/app/lib/timetable/src/models/lesson.dart b/app/lib/timetable/src/models/lesson.dart
index e4b0f5944..aea669c6d 100644
--- a/app/lib/timetable/src/models/lesson.dart
+++ b/app/lib/timetable/src/models/lesson.dart
@@ -6,6 +6,7 @@
 //
 // SPDX-License-Identifier: EUPL-1.2
 
+import 'package:cloud_firestore_helper/cloud_firestore_helper.dart';
 import 'package:date/date.dart';
 import 'package:date/weekday.dart';
 import 'package:date/weektype.dart';
@@ -14,6 +15,13 @@ import 'package:sharezone/timetable/src/models/lesson_length/lesson_length.dart'
 import 'package:time/time.dart';
 
 class Lesson {
+  /// The date and time when the event was created.
+  ///
+  /// Clients with a lower version than 1.7.9 will not have this field.
+  /// Therefore, we will always have events without a [createdOn] field in the
+  /// database.
+  final DateTime? createdOn;
+
   final String? lessonID;
   final String groupID;
   final GroupType groupType;
@@ -26,6 +34,7 @@ class Lesson {
   LessonLength get length => calculateLessonLength(startTime, endTime);
 
   Lesson({
+    required this.createdOn,
     required this.lessonID,
     required this.groupID,
     required this.groupType,
@@ -42,6 +51,7 @@ class Lesson {
 
   factory Lesson.fromData(Map<String, dynamic> data, {required String id}) {
     return Lesson(
+      createdOn: dateTimeFromTimestampOrNull(data['createdOn']),
       lessonID: id,
       groupID: data['groupID'] as String,
       groupType: GroupType.values.byName(data['groupType'] as String),
@@ -74,6 +84,7 @@ class Lesson {
   }
 
   Lesson copyWith({
+    DateTime? createdOn,
     String? lessonID,
     String? groupID,
     GroupType? groupType,
@@ -88,6 +99,7 @@ class Lesson {
     String? place,
   }) {
     return Lesson(
+      createdOn: createdOn ?? this.createdOn,
       groupType: groupType ?? this.groupType,
       lessonID: lessonID ?? this.lessonID,
       groupID: groupID ?? this.groupID,
diff --git a/app/lib/timetable/timetable_add/bloc/timetable_add_bloc.dart b/app/lib/timetable/timetable_add/bloc/timetable_add_bloc.dart
index 31c6d4d4e..8763ffaf0 100644
--- a/app/lib/timetable/timetable_add/bloc/timetable_add_bloc.dart
+++ b/app/lib/timetable/timetable_add/bloc/timetable_add_bloc.dart
@@ -127,6 +127,9 @@ class TimetableAddBloc extends BlocBase {
       log("isValid: true; ${course.toString()}; $startTime; $endTime; $room $weekDay $period");
 
       final lesson = Lesson(
+        // The 'createdOn' field will be added in the gateway because we use
+        // serverTimestamp().
+        createdOn: null,
         groupID: course.id,
         groupType: GroupType.course,
         startDate: null,
diff --git a/app/lib/util/api/timetable_gateway.dart b/app/lib/util/api/timetable_gateway.dart
index 4f8e33c50..71bf3d9e1 100644
--- a/app/lib/util/api/timetable_gateway.dart
+++ b/app/lib/util/api/timetable_gateway.dart
@@ -22,6 +22,7 @@ class TimetableGateway {
     String lessonID = references.lessons.doc().id;
     Map<String, dynamic> data = lesson.copyWith(lessonID: lessonID).toJson();
     data['users'] = [memberID];
+    data['createdOn'] = FieldValue.serverTimestamp();
     return references.lessons
         .doc(lessonID)
         .set(data, SetOptions(merge: true))
diff --git a/app/test/dashboard/current_lesson_index_test.dart b/app/test/dashboard/current_lesson_index_test.dart
index e0f60e069..697dc89b6 100644
--- a/app/test/dashboard/current_lesson_index_test.dart
+++ b/app/test/dashboard/current_lesson_index_test.dart
@@ -25,6 +25,7 @@ void main() {
       abbreviation: "D",
       design: Design.standard(),
       lesson: Lesson(
+        createdOn: DateTime(2024, 1, 1),
         lessonID: "1",
         groupID: "1",
         groupType: GroupType.course,
diff --git a/app/test/timetable/timetable_bloc_test.dart b/app/test/timetable/timetable_bloc_test.dart
index 2d3e5f699..e24c8e881 100644
--- a/app/test/timetable/timetable_bloc_test.dart
+++ b/app/test/timetable/timetable_bloc_test.dart
@@ -45,6 +45,7 @@ void main() {
 
     Lesson createLesson(String groupId) {
       return Lesson(
+        createdOn: DateTime(2024, 1, 1),
         startTime: Time(hour: 9, minute: 0),
         endTime: Time(hour: 10, minute: 0),
         groupID: groupId,
diff --git a/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_dark.iphone11.png b/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_dark.iphone11.png
index 485bf077f..1829bde29 100644
Binary files a/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_dark.iphone11.png and b/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_dark.iphone11.png differ
diff --git a/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_dark.phone.png b/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_dark.phone.png
index e0c7a0a1c..c4397ed1c 100644
Binary files a/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_dark.phone.png and b/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_dark.phone.png differ
diff --git a/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_dark.tablet_landscape.png b/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_dark.tablet_landscape.png
index 6e1aa0210..74f77235d 100644
Binary files a/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_dark.tablet_landscape.png and b/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_dark.tablet_landscape.png differ
diff --git a/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_dark.tablet_portrait.png b/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_dark.tablet_portrait.png
index 9d189482d..5c4172520 100644
Binary files a/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_dark.tablet_portrait.png and b/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_dark.tablet_portrait.png differ
diff --git a/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_light.iphone11.png b/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_light.iphone11.png
index 06d0d1b97..926584774 100644
Binary files a/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_light.iphone11.png and b/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_light.iphone11.png differ
diff --git a/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_light.phone.png b/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_light.phone.png
index 82414d1fe..701d1ab27 100644
Binary files a/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_light.phone.png and b/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_light.phone.png differ
diff --git a/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_light.tablet_landscape.png b/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_light.tablet_landscape.png
index 10d82e4f2..b506766e2 100644
Binary files a/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_light.tablet_landscape.png and b/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_light.tablet_landscape.png differ
diff --git a/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_light.tablet_portrait.png b/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_light.tablet_portrait.png
index a7e97fa17..b13e33843 100644
Binary files a/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_light.tablet_portrait.png and b/app/test_goldens/homework/homework_dialog/goldens/homework_dialog_edit_filled_1_light.tablet_portrait.png differ