diff --git a/wanikaniburned.py b/wanikaniburned.py
index 13ebb10..ba6ad7d 100644
--- a/wanikaniburned.py
+++ b/wanikaniburned.py
@@ -93,12 +93,11 @@ class User(db.Model):
             self.vocabulary = json.dumps(items)
 
     def update_all(self):
-        if (datetime.now() - self.last_updated) > timedelta(hours=1):
+        if (datetime.utcnow() - self.last_updated) > timedelta(hours=1):
             self.parse_radicals_and_userdata()
             self.parse_kanji()
             self.parse_vocabulary()
             self.last_updated = datetime.utcnow()
-            db.session.add(self)
             db.session.commit()
         else:
             raise ValueError('Cannot refresh now, try again later.')