diff --git a/pkg/proxy/iptables/proxier.go b/pkg/proxy/iptables/proxier.go
index 5ea5fb1adbf..8f7f41900e7 100644
--- a/pkg/proxy/iptables/proxier.go
+++ b/pkg/proxy/iptables/proxier.go
@@ -504,8 +504,8 @@ func (proxier *Proxier) probability(n int) string {
 func (proxier *Proxier) Sync() {
 	if proxier.healthzServer != nil {
 		proxier.healthzServer.QueuedUpdate()
-		metrics.SyncProxyRulesLastQueuedTimestamp.SetToCurrentTime()
 	}
+	metrics.SyncProxyRulesLastQueuedTimestamp.SetToCurrentTime()
 	proxier.syncRunner.Run()
 }
 
@@ -515,6 +515,9 @@ func (proxier *Proxier) SyncLoop() {
 	if proxier.healthzServer != nil {
 		proxier.healthzServer.Updated()
 	}
+
+	// synthesize "last change queued" time as the informers are syncing.
+	metrics.SyncProxyRulesLastQueuedTimestamp.SetToCurrentTime()
 	proxier.syncRunner.Loop(wait.NeverStop)
 }
 
diff --git a/pkg/proxy/ipvs/proxier.go b/pkg/proxy/ipvs/proxier.go
index 9515ad0603e..e5364ffe787 100644
--- a/pkg/proxy/ipvs/proxier.go
+++ b/pkg/proxy/ipvs/proxier.go
@@ -810,8 +810,8 @@ func CleanupLeftovers(ipvs utilipvs.Interface, ipt utiliptables.Interface, ipset
 func (proxier *Proxier) Sync() {
 	if proxier.healthzServer != nil {
 		proxier.healthzServer.QueuedUpdate()
-		metrics.SyncProxyRulesLastQueuedTimestamp.SetToCurrentTime()
 	}
+	metrics.SyncProxyRulesLastQueuedTimestamp.SetToCurrentTime()
 	proxier.syncRunner.Run()
 }
 
@@ -821,6 +821,8 @@ func (proxier *Proxier) SyncLoop() {
 	if proxier.healthzServer != nil {
 		proxier.healthzServer.Updated()
 	}
+	// synthesize "last change queued" time as the informers are syncing.
+	metrics.SyncProxyRulesLastQueuedTimestamp.SetToCurrentTime()
 	proxier.syncRunner.Loop(wait.NeverStop)
 }
 
diff --git a/pkg/proxy/winkernel/proxier.go b/pkg/proxy/winkernel/proxier.go
index 40adcd59188..89ee38d17b7 100644
--- a/pkg/proxy/winkernel/proxier.go
+++ b/pkg/proxy/winkernel/proxier.go
@@ -34,7 +34,7 @@ import (
 	"github.com/davecgh/go-spew/spew"
 	"k8s.io/klog"
 
-	"k8s.io/api/core/v1"
+	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/types"
 	"k8s.io/apimachinery/pkg/util/intstr"
 	"k8s.io/apimachinery/pkg/util/sets"
@@ -736,8 +736,8 @@ func getHnsNetworkInfo(hnsNetworkName string) (*hnsNetworkInfo, error) {
 func (proxier *Proxier) Sync() {
 	if proxier.healthzServer != nil {
 		proxier.healthzServer.QueuedUpdate()
-		metrics.SyncProxyRulesLastQueuedTimestamp.SetToCurrentTime()
 	}
+	metrics.SyncProxyRulesLastQueuedTimestamp.SetToCurrentTime()
 	proxier.syncRunner.Run()
 }
 
@@ -747,6 +747,8 @@ func (proxier *Proxier) SyncLoop() {
 	if proxier.healthzServer != nil {
 		proxier.healthzServer.Updated()
 	}
+	// synthesize "last change queued" time as the informers are syncing.
+	metrics.SyncProxyRulesLastQueuedTimestamp.SetToCurrentTime()
 	proxier.syncRunner.Loop(wait.NeverStop)
 }