diff --git a/src/main/java/org/dbms/data/DataPerformMongo.java b/src/main/java/org/dbms/data/DataPerformMongo.java
index 71d7b26..af5da82 100644
--- a/src/main/java/org/dbms/data/DataPerformMongo.java
+++ b/src/main/java/org/dbms/data/DataPerformMongo.java
@@ -119,9 +119,9 @@ public class DataPerformMongo {
 
             Car car = new Car(models[modelIndex], generateDate(), cost, parkings.get(rnd.nextInt(parkings.size())));
 
-            long start = System.nanoTime();
+            long start = System.currentTimeMillis();
             carRepo.insert(car);
-            long end = System.nanoTime();
+            long end = System.currentTimeMillis();
             res += end - start;
         }
         return res;