diff --git a/analytics/data_provider.py b/analytics/data_provider.py
index 78f83c6..4cecbd6 100644
--- a/analytics/data_provider.py
+++ b/analytics/data_provider.py
@@ -52,10 +52,9 @@ class DataProvider:
             return result
         dataframe = self.get_dataframe(None)
         for anomaly in anomalies:
-            start_time = pd.to_datetime(anomaly['start'] + 1, unit='ms')
-            finish_time = pd.to_datetime(anomaly['finish'] - 1, unit='ms')
-            current_index = (dataframe['timestamp'] >= start_time) & (
-                dataframe['timestamp'] <= finish_time)
+            start_time = pd.to_datetime(anomaly['start'] - 1, unit='ms')
+            finish_time = pd.to_datetime(anomaly['finish'] + 1, unit='ms')
+            current_index = (dataframe['timestamp'] >= start_time) & (dataframe['timestamp'] <= finish_time)
             anomaly_frame = dataframe[current_index]
             if anomaly_frame.empty:
                 continue