diff --git a/index.html b/index.html
index fe6dfb5..cad6d3e 100644
--- a/index.html
+++ b/index.html
@@ -138,6 +138,8 @@
                                                     @click.prevent="removeShift(s)">löschen</button>
                                                 <button class="btn-flat"
                                                     @click.prevent="selectShift(s)">bearbeiten</button>
+                                                <button class="waves-effect waves-dark btn blue" @click.prevent="updateBeginn(s, -1)">1 h früher</button>
+                                                <button class="waves-effect waves-dark btn blue" @click.prevent="updateBeginn(s, 1)">1 h später</button>
                                             </td>
                                         </tr>
                                     </template>
@@ -149,6 +151,8 @@
                                     :disabled=" (remaining > 0) ? null : 'disabled'">
                                     Kalenderdatei erstellen
                                 </button>
+                                <button class="waves-effect waves-dark btn blue" @click.prevent="changeTime(-1)">alle 1 h früher</button>
+                                <button class="waves-effect waves-dark btn blue" @click.prevent="changeTime(1)">alle 1 h später</button>
                                 <button class="waves-effect waves-dark btn next-step">Weiter</button>
                             </div>
                         </div>
@@ -269,4 +273,4 @@
     <script src="app.js"></script>
 </body>
 
-</html>
\ No newline at end of file
+</html>