diff --git a/common/collect/timed_queue.go b/common/collect/timed_queue.go
index 375316f04..52d865c94 100644
--- a/common/collect/timed_queue.go
+++ b/common/collect/timed_queue.go
@@ -72,7 +72,7 @@ func (queue *TimedQueue) RemovedEntries() <-chan interface{} {
 
 func (queue *TimedQueue) cleanup(tick <-chan time.Time) {
 	for now := range tick {
-		nowSec := now.UTC().Unix()
+		nowSec := now.Unix()
 		for {
 			queue.access.RLock()
 			queueLen := queue.queue.Len()
diff --git a/common/collect/timed_queue_test.go b/common/collect/timed_queue_test.go
index fb3c5f99e..162e0b6dd 100644
--- a/common/collect/timed_queue_test.go
+++ b/common/collect/timed_queue_test.go
@@ -12,7 +12,7 @@ func TestTimedQueue(t *testing.T) {
 
 	removed := make(map[string]bool)
 
-	nowSec := time.Now().UTC().Unix()
+	nowSec := time.Now().Unix()
 	q := NewTimedQueue(2)
 
 	go func() {
@@ -51,7 +51,7 @@ func TestTimedQueue(t *testing.T) {
 	<-tick
 	assert.Bool(removed["Values"]).IsFalse()
 
-	q.Add("Value1", time.Now().UTC().Unix()+10)
+	q.Add("Value1", time.Now().Unix()+10)
 
 	<-tick
 	v1, ok = removed["Value1"]
diff --git a/proxy/vmess/protocol/user/userset.go b/proxy/vmess/protocol/user/userset.go
index 81f186e7e..1ca661d52 100644
--- a/proxy/vmess/protocol/user/userset.go
+++ b/proxy/vmess/protocol/user/userset.go
@@ -63,10 +63,10 @@ func (us *TimedUserSet) generateNewHashes(lastSec, nowSec int64, idx int, id *co
 }
 
 func (us *TimedUserSet) updateUserHash(tick <-chan time.Time) {
-	lastSec := time.Now().UTC().Unix() - cacheDurationSec
+	lastSec := time.Now().Unix() - cacheDurationSec
 
 	for now := range tick {
-		nowSec := now.UTC().Unix() + cacheDurationSec
+		nowSec := now.Unix() + cacheDurationSec
 		for idx, id := range us.validUserIds {
 			us.generateNewHashes(lastSec, nowSec, idx, id)
 		}
@@ -79,7 +79,7 @@ func (us *TimedUserSet) AddUser(user config.User) error {
 	idx := len(us.validUserIds)
 	us.validUserIds = append(us.validUserIds, id)
 
-	nowSec := time.Now().UTC().Unix()
+	nowSec := time.Now().Unix()
 	lastSec := nowSec - cacheDurationSec
 	us.generateNewHashes(lastSec, nowSec+cacheDurationSec, idx, id)
 
diff --git a/proxy/vmess/protocol/vmess.go b/proxy/vmess/protocol/vmess.go
index e1964f4da..0c01ab775 100644
--- a/proxy/vmess/protocol/vmess.go
+++ b/proxy/vmess/protocol/vmess.go
@@ -166,7 +166,7 @@ func (request *VMessRequest) ToBytes(idHash user.CounterHash, randomRangeInt64 u
 		buffer = alloc.NewSmallBuffer().Clear()
 	}
 
-	counter := randomRangeInt64(time.Now().UTC().Unix(), 30)
+	counter := randomRangeInt64(time.Now().Unix(), 30)
 	hash := idHash.Hash(request.UserId.Bytes[:], counter)
 
 	buffer.Append(hash)