1 files changed, 1 insertions, 1 deletions
diff --git a/web/app/model/Device.js b/web/app/model/Device.js
index 3cd9ee560..b8434d6ad 100644
--- a/web/app/model/Device.js
+++ b/web/app/model/Device.js
@@ -33,6 +33,6 @@ Ext.define('Traccar.model.Device', {
     }, {
         name: 'lastUpdate',
         type: 'date',
-        dateWriteFormat: 'C'
+        dateWriteFormat: 'c'
     }]
 });