diff --git a/zsub/msg-consumer.go b/zsub/msg-consumer.go
index 50a67f8..fa9e4e2 100644
--- a/zsub/msg-consumer.go
+++ b/zsub/msg-consumer.go
@@ -70,7 +70,7 @@ func msgAccept(v Message) {
 	case "broadcast":
 		zsub.broadcast(rcmd[1], rcmd[2])
 	case "daly":
-		daly(rcmd, c)
+		zsub.daly(rcmd, c)
 	case "timer":
 		zsub.timer(rcmd, c)
 	case "cmd":
@@ -88,7 +88,9 @@ func msgAccept(v Message) {
 }
 
 // daly topic value 100 -> publish topic value
-func daly(rcmd []string, c *ZConn) {
+func (s *ZSub) daly(rcmd []string, c *ZConn) {
+	s.Lock()
+	defer s.Unlock()
 	if len(rcmd) != 4 {
 		c.send("-Error: subscribe para number!")
 		return
@@ -100,10 +102,24 @@ func daly(rcmd []string, c *ZConn) {
 		return
 	}
 
-	timer := time.NewTimer(time.Duration(t) * time.Millisecond)
-	select {
-	case <-timer.C:
-		zsub.publish(rcmd[1], rcmd[2])
+	timer := s.delays[rcmd[1]+"-"+rcmd[2]]
+	if timer != nil {
+		if t == -1 {
+			timer.Stop()
+			s.delays[rcmd[1]+"-"+rcmd[2]] = nil
+			return
+		}
+		timer.Reset(time.Duration(t) * time.Millisecond)
+	} else {
+		timer = time.NewTimer(time.Duration(t) * time.Millisecond)
+		s.delays[rcmd[1]+"-"+rcmd[2]] = timer
+		go func() {
+			select {
+			case <-timer.C:
+				zsub.publish(rcmd[1], rcmd[2])
+				s.delays[rcmd[1]+"-"+rcmd[2]] = nil
+			}
+		}()
 	}
 }
 
diff --git a/zsub/zsub.go b/zsub/zsub.go
index eeb6da3..adf4033 100644
--- a/zsub/zsub.go
+++ b/zsub/zsub.go
@@ -7,12 +7,14 @@ import (
 	"strconv"
 	"strings"
 	"sync"
+	"time"
 )
 
 var (
 	zsub = ZSub{
 		topics: make(map[string]*ZTopic),
 		timers: make(map[string]*ZTimer),
+		delays: make(map[string]*time.Timer),
 	}
 )
 
@@ -20,6 +22,7 @@ type ZSub struct {
 	sync.RWMutex
 	topics map[string]*ZTopic
 	timers map[string]*ZTimer
+	delays map[string]*time.Timer
 }
 
 type ZConn struct { //ZConn