diff --git a/third_party/can_btm/balise_btm.go b/third_party/can_btm/balise_btm.go
index a8b3378..4272038 100644
--- a/third_party/can_btm/balise_btm.go
+++ b/third_party/can_btm/balise_btm.go
@@ -184,7 +184,7 @@ func (s *btmCanetClient) dealWithAptReq(f *message.CanetFrame) {
 	//slog.Debug(fmt.Sprintf("处理查询请求:%s", atpReq.String()))
 	//
 	s.btmTime.btmTk = atpReq.Time
-	s.btmTime.sysTk = time.Now()
+	s.btmTime.sysTk = now
 	s.atpReqSn = atpReq.FId.ID4
 	s.atpReqCrc16Check = atpReq.Crc16CheckOk
 	s.baliseDetector.powerAmplifierSwitch = atpReq.PowerAmplifierTurnOn