diff --git a/static/js/app.js b/static/js/app.js
index e333c8e..af925e2 100644
--- a/static/js/app.js
+++ b/static/js/app.js
@@ -238,7 +238,7 @@
 
                 var offset = serverOffset - localOffset;
 
-                return timestamp + offset * 60 * 1000;
+                return timestamp - offset * 60 * 1000;
             };
 
             /**