diff --git a/aws-ec2/collectors/aws-ec2.py b/aws-ec2/collectors/aws-ec2.py
index 64aca44..8851d5c 100644
--- a/aws-ec2/collectors/aws-ec2.py
+++ b/aws-ec2/collectors/aws-ec2.py
@@ -177,7 +177,7 @@ def collect(self, _):
                 metric_name = "aws." + metric['Id']
                 if len(metric['Values']) > 0:
                     value = metric['Values'][-1]
-                    ts = int(metric['Timestamps'][-1].utcnow().timestamp() * 1000)
+                    ts = int(metric['Timestamps'][-1].timestamp() * 1000)
                     if metric['Id'] == 'ec2_cpuutilization_max':
                         self.sample('sys.cpu.pct',
                                     value,
diff --git a/aws-elb/collectors/aws-elb.py b/aws-elb/collectors/aws-elb.py
index e2176e0..f9b2d0b 100644
--- a/aws-elb/collectors/aws-elb.py
+++ b/aws-elb/collectors/aws-elb.py
@@ -177,7 +177,7 @@ def collect(self, _):
                 metric_name = "aws." + metric['Id']
                 if len(metric['Values']) > 0:
                     value = metric['Values'][-1]
-                    ts = int(metric['Timestamps'][-1].utcnow().timestamp() * 1000)
+                    ts = int(metric['Timestamps'][-1].timestamp() * 1000)
                     self.sample(metric_name,
                                 value,
                                 timestamp=ts,
diff --git a/aws-rds/collectors/aws-rds.py b/aws-rds/collectors/aws-rds.py
index 560febf..b2afe83 100644
--- a/aws-rds/collectors/aws-rds.py
+++ b/aws-rds/collectors/aws-rds.py
@@ -186,7 +186,7 @@ def collect(self, _):
                 metric_name = "aws." + metric['Id']
                 if len(metric['Values']) > 0:
                     value = metric['Values'][-1]
-                    ts = int(metric['Timestamps'][-1].utcnow().timestamp() * 1000)
+                    ts = int(metric['Timestamps'][-1].timestamp() * 1000)
                     self.sample(metric_name, 
                                 value,
                                 timestamp=ts,