diff --git a/CHANGELOG.md b/CHANGELOG.md
index d72d239bb2b..8a0ea210164 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -26,7 +26,7 @@
 
 ### Improvements
 
-- TODO ([#XXX](https://github.com/kedacore/keda/pull/XXX))
+- Improve validation in Cron scaler in case start & end input is same.([#2032](https://github.com/kedacore/keda/pull/2032))
 
 ### Breaking Changes
 
diff --git a/pkg/scalers/cron_scaler.go b/pkg/scalers/cron_scaler.go
index 81b98922a25..71fbf2a122d 100644
--- a/pkg/scalers/cron_scaler.go
+++ b/pkg/scalers/cron_scaler.go
@@ -89,6 +89,9 @@ func parseCronMetadata(config *ScalerConfig) (*cronMetadata, error) {
 	} else {
 		return nil, fmt.Errorf("no end schedule specified. %s", config.TriggerMetadata)
 	}
+	if meta.start == meta.end {
+		return nil, fmt.Errorf("error parsing schedule. %s: start and end can not have exactly same time input", config.TriggerMetadata)
+	}
 	if val, ok := config.TriggerMetadata["desiredReplicas"]; ok && val != "" {
 		metadataDesiredReplicas, err := strconv.Atoi(val)
 		if err != nil {
diff --git a/pkg/scalers/cron_scaler_test.go b/pkg/scalers/cron_scaler_test.go
index 68e841c2c29..0a0c2975dba 100644
--- a/pkg/scalers/cron_scaler_test.go
+++ b/pkg/scalers/cron_scaler_test.go
@@ -36,6 +36,7 @@ var testCronMetadata = []parseCronMetadataTestData{
 	{map[string]string{"timezone": "Asia/Kolkata", "start": "-30 * * * *", "end": "45 * * * *", "desiredReplicas": "10"}, true},
 	{map[string]string{"timezone": "Asia/Kolkata", "start": "30 * * * *", "end": "-50 * * * *", "desiredReplicas": "10"}, true},
 	{map[string]string{"timezone": "Asia/Kolkata", "start": "30 * * * *", "end": "50 * * -3 *", "desiredReplicas": "10"}, true},
+	{map[string]string{"timezone": "Asia/Kolkata", "start": "30 * * * *", "end": "30 * * * *", "desiredReplicas": "10"}, true},
 }
 
 var cronMetricIdentifiers = []cronMetricIdentifier{