diff --git a/pkg/config/filter.go b/pkg/config/filter.go
index 61fcbef0..019ed8eb 100644
--- a/pkg/config/filter.go
+++ b/pkg/config/filter.go
@@ -84,11 +84,12 @@ func parseDate(input string) (time.Time, error) {
 		return t, nil
 	}
 
-	formats := []string{"2006-01-02",
+	formats := []string{
+		"2006-01-02",
 		"2006/01/02",
 		"2006-01-02T15:04:05Z",
-		"2006-01-02 15:04:05.000 -0700 MST", // Date format used by AWS for CreateTime on ASGs
-		time.RFC3339Nano,                    // Format of t.MarshalText() and t.MarshalJSON()
+		"2006-01-02 15:04:05 -0700 MST", // Date format used by AWS for CreateTime on ASGs
+		time.RFC3339Nano,                // Format of t.MarshalText() and t.MarshalJSON()
 		time.RFC3339,
 	}
 	for _, f := range formats {
diff --git a/pkg/config/filter_test.go b/pkg/config/filter_test.go
index a26df88c..25f0d236 100644
--- a/pkg/config/filter_test.go
+++ b/pkg/config/filter_test.go
@@ -48,18 +48,22 @@ func TestUnmarshalFilter(t *testing.T) {
 		},
 		{
 			yaml: `{"type":"dateOlderThan","value":"0"}`,
-			match: []string{strconv.Itoa(int(future.Unix())),
+			match: []string{
+				strconv.Itoa(int(future.Unix())),
 				future.Format("2006-01-02"),
 				future.Format("2006/01/02"),
 				future.Format("2006-01-02T15:04:05Z"),
+				future.Format("2006-01-02 15:04:05.000 +0000 UTC"),
 				future.Format(time.RFC3339Nano),
 				future.Format(time.RFC3339),
 			},
-			mismatch: []string{"",
+			mismatch: []string{
+				"",
 				strconv.Itoa(int(past.Unix())),
 				past.Format("2006-01-02"),
 				past.Format("2006/01/02"),
 				past.Format("2006-01-02T15:04:05Z"),
+				past.Format("2006-01-02 15:04:05.14 -0700 MST"),
 				past.Format(time.RFC3339Nano),
 				past.Format(time.RFC3339),
 			},
@@ -98,5 +102,4 @@ func TestUnmarshalFilter(t *testing.T) {
 			}
 		})
 	}
-
 }
diff --git a/resources/autoscaling-groups.go b/resources/autoscaling-groups.go
index 5f41ec7d..94aff114 100644
--- a/resources/autoscaling-groups.go
+++ b/resources/autoscaling-groups.go
@@ -1,6 +1,8 @@
 package resources
 
 import (
+	"time"
+
 	"github.com/aws/aws-sdk-go/aws"
 	"github.com/aws/aws-sdk-go/aws/session"
 	"github.com/aws/aws-sdk-go/service/autoscaling"
@@ -27,7 +29,6 @@ func ListAutoscalingGroups(s *session.Session) ([]Resource, error) {
 			}
 			return !lastPage
 		})
-
 	if err != nil {
 		return nil, err
 	}
@@ -65,7 +66,7 @@ func (asg *AutoScalingGroup) Properties() types.Properties {
 		properties.SetTag(tag.Key, tag.Value)
 	}
 
-	properties.Set("CreatedTime", asg.group.CreatedTime)
+	properties.Set("CreatedTime", asg.group.CreatedTime.Format(time.RFC3339))
 	properties.Set("Name", asg.group.AutoScalingGroupName)
 
 	return properties