diff --git a/lib/plugins/aws/metrics/awsMetrics.js b/lib/plugins/aws/metrics/awsMetrics.js
index 6d0e29aa3..8899daf37 100644
--- a/lib/plugins/aws/metrics/awsMetrics.js
+++ b/lib/plugins/aws/metrics/awsMetrics.js
@@ -33,9 +33,7 @@ class AwsMetrics {
     this.validate();
 
     const today = new Date();
-    let yesterday = new Date();
-    yesterday = yesterday.setDate(yesterday.getDate() - 1);
-    yesterday = new Date(yesterday);
+    const yesterday = moment().subtract(1, 'day').toDate();
 
     if (this.options.startTime) {
       const since = (['m', 'h', 'd']