diff --git a/make_graphs.py b/make_graphs.py
index d7924da..079c128 100644
--- a/make_graphs.py
+++ b/make_graphs.py
@@ -166,11 +166,11 @@ class BirbAnalyzer(CsvAnalyzer):
                 item = {}
                 for (name, value) in items:
                     item[name] = value.strip()
-                sec = item['fire_time']
+                sec = datetime.datetime.strptime(item['http_start_time'], '%Y-%m-%dT%H:%M:%S.%f').strftime("%H:%M:%S")
                 if sec not in responsepersec:
                     responsepersec[sec] = []
                 else:
-                    responsepersec[sec].append(int(item['latency']))
+                    responsepersec[sec].append(float(item['rtt']))
             self.walkresponsepersec(responsepersec, shouldprint)
 
 
@@ -204,12 +204,12 @@ class InputAnalyzer(CsvAnalyzer):
                 item = {}
                 for (name, value) in items:
                     item[name] = value.strip()
-                sec = item['fire_time']
+                sec = datetime.datetime.strptime(item['http_start_time'], '%Y-%m-%dT%H:%M:%S.%f')
                 if sec not in responsepersec:
                     responsepersec[sec] = []
                 else:
-                    firetime = datetime.datetime.strptime(sec, '%Y-%m-%dT%H:%M:%S')
-                    responsearrivetime = datetime.datetime.strptime(item['response_arrive_time'],
+                    firetime = datetime.datetime.strptime(item['http_start_time'], '%Y-%m-%dT%H:%M:%S.%f')
+                    responsearrivetime = datetime.datetime.strptime(item['http_complete_time'],
                                                                     "%Y-%m-%dT%H:%M:%S.%f")
                     latency = responsearrivetime - firetime
                     responsepersec[sec].append(int(latency.total_seconds() * 1000))