diff --git a/src/graphEntry.ts b/src/graphEntry.ts
index 2ba2d9b..ca4bc6e 100644
--- a/src/graphEntry.ts
+++ b/src/graphEntry.ts
@@ -270,7 +270,7 @@ export default class GraphEntry {
               lastNonNull,
             );
 
-            return [new Date(item.end).getTime(), !Number.isNaN(stateParsed) ? stateParsed : null];
+            return [new Date(item.start).getTime(), !Number.isNaN(stateParsed) ? stateParsed : null];
           });
         }
       } else {