diff --git a/server/model/maintenance.js b/server/model/maintenance.js
index 7111a18cb..d3314d3f8 100644
--- a/server/model/maintenance.js
+++ b/server/model/maintenance.js
@@ -158,12 +158,22 @@ class Maintenance extends BeanModel {
         bean.active = obj.active;
 
         if (obj.dateRange[0]) {
+            const parsedDate = new Date(obj.dateRange[0]);
+            if (isNaN(parsedDate.getTime()) || parsedDate.getFullYear() > 9999) {
+                throw new Error("Invalid start date");
+            }
+
             bean.start_date = obj.dateRange[0];
         } else {
             bean.start_date = null;
         }
 
         if (obj.dateRange[1]) {
+            const parsedDate = new Date(obj.dateRange[1]);
+            if (isNaN(parsedDate.getTime()) || parsedDate.getFullYear() > 9999) {
+                throw new Error("Invalid end date");
+            }
+
             bean.end_date = obj.dateRange[1];
         } else {
             bean.end_date = null;
diff --git a/src/pages/EditMaintenance.vue b/src/pages/EditMaintenance.vue
index 953fe337c..6341c5bed 100644
--- a/src/pages/EditMaintenance.vue
+++ b/src/pages/EditMaintenance.vue
@@ -223,12 +223,12 @@
                                     <div class="row">
                                         <div class="col">
                                             <div class="mb-2">{{ $t("startDateTime") }}</div>
-                                            <input v-model="maintenance.dateRange[0]" type="datetime-local" class="form-control" :required="maintenance.strategy === 'single'">
+                                            <input v-model="maintenance.dateRange[0]" type="datetime-local" max="9999-12-31T23:59" class="form-control" :required="maintenance.strategy === 'single'">
                                         </div>
 
                                         <div class="col">
                                             <div class="mb-2">{{ $t("endDateTime") }}</div>
-                                            <input v-model="maintenance.dateRange[1]" type="datetime-local" class="form-control" :required="maintenance.strategy === 'single'">
+                                            <input v-model="maintenance.dateRange[1]" type="datetime-local" max="9999-12-31T23:59" class="form-control" :required="maintenance.strategy === 'single'">
                                         </div>
                                     </div>
                                 </div>