diff --git a/src/app/view/home/graph-list/graph-list.component.ts b/src/app/view/home/graph-list/graph-list.component.ts
index e048001..4b7d446 100644
--- a/src/app/view/home/graph-list/graph-list.component.ts
+++ b/src/app/view/home/graph-list/graph-list.component.ts
@@ -618,7 +618,7 @@ export class GraphListComponent implements OnInit {
     let dtickval;
     if(tickformat == "%H-%M")
       dtickval = ''
-    else if(DifficultychartDate.length <11712)
+    else if(DifficultychartDate.length <21712)
       dtickval =2*24*60*60*1000
     else 
       dtickval =6*24*60*60*1000
@@ -1485,7 +1485,7 @@ export class GraphListComponent implements OnInit {
     let dtickval;
     if(tickformat == "%H-%M")
       dtickval = ''
-    else if(DifficultychartDate.length <11712)
+    else if(DifficultychartDate.length <22712)
       dtickval =2*24*60*60*1000
     else 
       dtickval =6*24*60*60*1000