diff --git a/internal/nodes/client_conn.go b/internal/nodes/client_conn.go
index 33f2392..35f4881 100644
--- a/internal/nodes/client_conn.go
+++ b/internal/nodes/client_conn.go
@@ -135,7 +135,7 @@ func (this *ClientConn) checkSYNFlood() {
 
 	var ip = this.RawIP()
 	if len(ip) > 0 && !iplibrary.IsInWhiteList(ip) && (!synFloodConfig.IgnoreLocal || !utils.IsLocalIP(ip)) {
-		var timestamp = (utils.UnixTime()/60)*60 + 60
+		var timestamp = utils.NextMinuteUnixTime()
 		var result = ttlcache.SharedCache.IncreaseInt64("SYN_FLOOD:"+ip, 1, timestamp)
 		var minAttempts = synFloodConfig.MinAttempts
 		if minAttempts < 3 {
diff --git a/internal/stats/traffic_stat_manager.go b/internal/stats/traffic_stat_manager.go
index 6ac5746..bad410b 100644
--- a/internal/stats/traffic_stat_manager.go
+++ b/internal/stats/traffic_stat_manager.go
@@ -100,8 +100,7 @@ func (this *TrafficStatManager) Add(serverId int64, domain string, bytes int64,
 
 	this.totalRequests++
 
-	timestamp := utils.UnixTime() / 300 * 300
-
+	timestamp := utils.FloorUnixTime(300)
 	key := strconv.FormatInt(timestamp, 10) + strconv.FormatInt(serverId, 10)
 	this.locker.Lock()
 
diff --git a/internal/utils/time.go b/internal/utils/time.go
index 65450ed..ae11c7a 100644
--- a/internal/utils/time.go
+++ b/internal/utils/time.go
@@ -23,6 +23,21 @@ func UnixTime() int64 {
 	return unixTime
 }
 
+// FloorUnixTime 取整
+func FloorUnixTime(seconds int) int64 {
+	return UnixTime() / int64(seconds) * int64(seconds)
+}
+
+// CeilUnixTime 取整并加1
+func CeilUnixTime(seconds int) int64 {
+	return UnixTime()/int64(seconds)*int64(seconds) + int64(seconds)
+}
+
+// NextMinuteUnixTime 获取下一分钟开始的时间戳
+func NextMinuteUnixTime() int64 {
+	return CeilUnixTime(60)
+}
+
 // UnixTimeMilli 获取时间戳，精确到毫秒
 func UnixTimeMilli() int64 {
 	return unixTimeMilli
diff --git a/internal/utils/time_test.go b/internal/utils/time_test.go
index cf0da76..260b4f6 100644
--- a/internal/utils/time_test.go
+++ b/internal/utils/time_test.go
@@ -1,6 +1,7 @@
 package utils
 
 import (
+	timeutil "github.com/iwind/TeaGo/utils/time"
 	"testing"
 	"time"
 )
@@ -19,3 +20,11 @@ func TestGMTUnixTime(t *testing.T) {
 func TestGMTTime(t *testing.T) {
 	t.Log(GMTTime(time.Now()))
 }
+
+func TestFloorUnixTime(t *testing.T) {
+	var timestamp = time.Now().Unix()
+	t.Log("floor 60:", timestamp, FloorUnixTime(60), timeutil.FormatTime("Y-m-d H:i:s", FloorUnixTime(60)))
+	t.Log("ceil 60:", timestamp, CeilUnixTime(60), timeutil.FormatTime("Y-m-d H:i:s", CeilUnixTime(60)))
+	t.Log("floor 300:", timestamp, FloorUnixTime(300), timeutil.FormatTime("Y-m-d H:i:s", FloorUnixTime(300)))
+	t.Log("next minute:", NextMinuteUnixTime())
+}