diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/utils/SipUtils.java b/src/main/java/com/genersoft/iot/vmp/gb28181/utils/SipUtils.java
index 58fc6012..38b94130 100644
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/utils/SipUtils.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/utils/SipUtils.java
@@ -261,6 +261,6 @@ public class SipUtils {
                 return null;
             }
         }
-        return localDateTime.format(DateUtil.formatterISO8601);
+        return localDateTime.format(DateUtil.formatter);
     }
 }
\ No newline at end of file