diff --git a/.gitea/workflows/demo.yaml b/.gitea/workflows/demo.yaml
index 21b19b8..d202286 100644
--- a/.gitea/workflows/demo.yaml
+++ b/.gitea/workflows/demo.yaml
@@ -3,7 +3,7 @@ run-name: ${{ gitea.actor }} is testing out Gitea Actions 🚀
 on: [push]
 
 jobs:
-  build:
+  test:
 
     runs-on: ubuntu-latest
 
@@ -22,6 +22,53 @@ jobs:
     - name: Build with Maven
       run: mvn -B package --file backend/pom.xml
 
-    # Optional: Uploads the full dependency graph to GitHub to improve the quality of Dependabot alerts this repository can receive
-   # - name: Update dependency graph
-      #uses: advanced-security/maven-dependency-submission-action@571e99aab1055c2e71a1e2309b9691de18d6b7d6
\ No newline at end of file
+  build-and-push-frontend:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Log into registry at Gitea
+        uses: docker/login-action@v2
+        with:
+          registry: https://git.fawkes100.de
+          username: ${{ secrets.REGISTRY_USER }}
+          password: ${{ secrets.REGISTRY_PASSWORD }}
+      - name: Setup Docker buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Extract Docker metadata
+        id: meta
+        uses: docker/metadata-action@v2
+        with:
+          images: git.fawkes100.de/TimeManager/timemanager-frontend
+      - name: Build and Push Latest Docker Image
+        id: build-and-push-latest
+        uses: docker/build-push-action@v4
+        if: ${{ github.ref == 'refs/heads/master' }}
+        with:
+          file: frontend/Dockerfile
+          push: true
+          tags: git.fawkes100.de/TimeManager/timemanager-frontend:latest
+  build-and-push-backend:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Log into registry at Gitea
+        uses: docker/login-action@v2
+        with:
+          registry: https://git.fawkes100.de
+          username: ${{ secrets.REGISTRY_USER }}
+          password: ${{ secrets.REGISTRY_PASSWORD }}
+      - name: Setup Docker buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Extract Docker metadata
+        id: meta
+        uses: docker/metadata-action@v2
+        with:
+          images: git.fawkes100.de/TimeManager/timemanager-backend
+      - name: Build and Push Latest Docker Image
+        id: build-and-push-latest
+        uses: docker/build-push-action@v4
+        if: ${{ github.ref == 'refs/heads/master' }}
+        with:
+          file: backend/Dockerfile
+          push: true
+          tags: git.fawkes100.de/TimeManager/timemanager-backend:latest
\ No newline at end of file
diff --git a/backend/.idea/workspace.xml b/backend/.idea/workspace.xml
index e1c6a0d..2afbcaf 100644
--- a/backend/.idea/workspace.xml
+++ b/backend/.idea/workspace.xml
@@ -4,7 +4,9 @@
     <option name="autoReloadType" value="SELECTIVE" />
   </component>
   <component name="ChangeListManager">
-    <list default="true" id="3a869f59-290a-4ab2-b036-a878ce801bc4" name="Changes" comment="Edit and Delete in Draggable Scheduler" />
+    <list default="true" id="3a869f59-290a-4ab2-b036-a878ce801bc4" name="Changes" comment="Fix parsing datetime">
+      <change beforePath="$PROJECT_DIR$/../.gitea/workflows/demo.yaml" beforeDir="false" afterPath="$PROJECT_DIR$/../.gitea/workflows/demo.yaml" afterDir="false" />
+    </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
     <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
@@ -174,11 +176,11 @@
     </configuration>
     <recent_temporary>
       <list>
-        <item itemvalue="JUnit.TaskServiceTest" />
         <item itemvalue="JUnit.ScheduleServiceTest.scheduleNow" />
-        <item itemvalue="JUnit.ScheduleServiceTest.scheduleAdvanced" />
-        <item itemvalue="JUnit.ScheduleServiceTest.editscheduleAdvanced" />
         <item itemvalue="JUnit.ScheduleServiceTest.editBasicSchedule" />
+        <item itemvalue="JUnit.ScheduleServiceTest.editscheduleAdvanced" />
+        <item itemvalue="JUnit.ScheduleServiceTest.scheduleAdvanced" />
+        <item itemvalue="JUnit.TaskServiceTest" />
       </list>
     </recent_temporary>
   </component>
@@ -218,7 +220,6 @@
       <workItem from="1699639316405" duration="9267000" />
       <workItem from="1699684493731" duration="1121000" />
       <workItem from="1699769541677" duration="7576000" />
-      <workItem from="1699898375418" duration="325000" />
     </task>
     <task id="LOCAL-00001" summary="Structure Taskgroups in Hierarchies">
       <option name="closed" value="true" />
@@ -572,29 +573,15 @@
       <option name="project" value="LOCAL" />
       <updated>1699806194258</updated>
     </task>
-    <task id="LOCAL-00045" summary="Fix parsing datetime (diesmal hoffentlich wirklich)">
-      <option name="closed" value="true" />
-      <created>1699809089060</created>
-      <option name="number" value="00045" />
-      <option name="presentableId" value="LOCAL-00045" />
-      <option name="project" value="LOCAL" />
-      <updated>1699809089060</updated>
-    </task>
-    <task id="LOCAL-00046" summary="Edit and Delete in Draggable Scheduler">
-      <option name="closed" value="true" />
-      <created>1699824923378</created>
-      <option name="number" value="00046" />
-      <option name="presentableId" value="LOCAL-00046" />
-      <option name="project" value="LOCAL" />
-      <updated>1699824923378</updated>
-    </task>
-    <option name="localTasksCounter" value="47" />
+    <option name="localTasksCounter" value="45" />
     <servers />
   </component>
   <component name="TypeScriptGeneratedFilesManager">
     <option name="version" value="3" />
   </component>
   <component name="VcsManagerConfiguration">
+    <MESSAGE value="Write simple Testcase for ci/cd" />
+    <MESSAGE value="Deactivate Overall System test (temporarly)" />
     <MESSAGE value="Fix failing test case" />
     <MESSAGE value="TaskgroupRepsitoryTest" />
     <MESSAGE value="TaskgroupRepsitoryTest (+Delete)" />
@@ -618,9 +605,7 @@
     <MESSAGE value="Deploy on docker (not productive yet!)" />
     <MESSAGE value="Fix deleting tasks" />
     <MESSAGE value="Fix parsing datetime" />
-    <MESSAGE value="Fix parsing datetime (diesmal hoffentlich wirklich)" />
-    <MESSAGE value="Edit and Delete in Draggable Scheduler" />
-    <option name="LAST_COMMIT_MESSAGE" value="Edit and Delete in Draggable Scheduler" />
+    <option name="LAST_COMMIT_MESSAGE" value="Fix parsing datetime" />
   </component>
   <component name="XDebuggerManager">
     <breakpoint-manager>
@@ -630,31 +615,11 @@
           <line>57</line>
           <option name="timeStamp" value="12" />
         </line-breakpoint>
-        <line-breakpoint enabled="true" type="java-line">
-          <url>file://$PROJECT_DIR$/src/main/java/core/api/controller/ScheduleController.java</url>
-          <line>98</line>
-          <option name="timeStamp" value="16" />
-        </line-breakpoint>
         <line-breakpoint enabled="true" type="java-line">
           <url>file://$PROJECT_DIR$/src/main/java/core/services/TaskService.java</url>
           <line>93</line>
           <option name="timeStamp" value="35" />
         </line-breakpoint>
-        <line-breakpoint enabled="true" type="java-line">
-          <url>file://$PROJECT_DIR$/src/main/java/core/api/controller/ScheduleController.java</url>
-          <line>83</line>
-          <option name="timeStamp" value="36" />
-        </line-breakpoint>
-        <line-breakpoint enabled="true" type="java-line">
-          <url>file://$PROJECT_DIR$/src/main/java/core/entities/timemanager/Taskgroup.java</url>
-          <line>99</line>
-          <option name="timeStamp" value="37" />
-        </line-breakpoint>
-        <line-breakpoint enabled="true" type="java-line">
-          <url>file://$PROJECT_DIR$/src/main/java/core/entities/timemanager/Taskgroup.java</url>
-          <line>100</line>
-          <option name="timeStamp" value="38" />
-        </line-breakpoint>
       </breakpoints>
     </breakpoint-manager>
   </component>
diff --git a/backend/src/main/java/core/api/models/timemanager/tasks/TaskFieldInfo.java b/backend/src/main/java/core/api/models/timemanager/tasks/TaskFieldInfo.java
index d4f2cf9..1cf7335 100644
--- a/backend/src/main/java/core/api/models/timemanager/tasks/TaskFieldInfo.java
+++ b/backend/src/main/java/core/api/models/timemanager/tasks/TaskFieldInfo.java
@@ -1,5 +1,6 @@
 package core.api.models.timemanager.tasks;
 
+import com.fasterxml.jackson.annotation.JsonFormat;
 import org.hibernate.validator.constraints.Length;
 
 import javax.validation.constraints.NotBlank;
@@ -11,7 +12,11 @@ public class TaskFieldInfo {
     @Length(max = 255)
     private String taskName;
     private int eta;
+
+    @JsonFormat(pattern = "yyyy-MM-dd'T'HH:mm:ss.SSSXXX")
     private LocalDate startDate;
+
+    @JsonFormat(pattern = "yyyy-MM-dd'T'HH:mm:ss.SSSXXX")
     private LocalDate deadline;
 
     public TaskFieldInfo() {
diff --git a/frontend/src/app/tasks/task-editor/task-editor.component.ts b/frontend/src/app/tasks/task-editor/task-editor.component.ts
index 7752773..ab05b42 100644
--- a/frontend/src/app/tasks/task-editor/task-editor.component.ts
+++ b/frontend/src/app/tasks/task-editor/task-editor.component.ts
@@ -7,6 +7,7 @@ import {MAT_DIALOG_DATA, MatDialogRef} from "@angular/material/dialog";
 import {TaskService} from "../../../api";
 import {TaskEditorData} from "./TaskEditorData";
 import {MatSnackBar} from "@angular/material/snack-bar";
+import * as moment from "moment/moment";
 
 
 @Component({
@@ -53,8 +54,8 @@ export class TaskEditorComponent implements OnInit {
     this.taskService.tasksTaskgroupIDPut(this.editorData.taskgroupID, {
       taskName: this.nameCtrl.value,
       eta: this.etaCtrl.value,
-      startDate: this.startDate.value,
-      deadline: this.endDate.value
+      startDate: moment(this.startDate.value).format('YYYY-MM-DDTHH:mm:ss.SSSZ'),
+      deadline: moment(this.endDate.value).format('YYYY-MM-DDTHH:mm:ss.SSSZ')
     }).subscribe({
       next: resp => {
         this.dialog.close(resp);