diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/bean/WvpSipDate.java b/src/main/java/com/genersoft/iot/vmp/gb28181/bean/WvpSipDate.java
index ba1a1c7a..50d1f26b 100644
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/bean/WvpSipDate.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/bean/WvpSipDate.java
@@ -1,14 +1,95 @@
 package com.genersoft.iot.vmp.gb28181.bean;
 
+import gov.nist.core.InternalErrorHandler;
 import gov.nist.javax.sip.header.SIPDate;
 
+import java.util.*;
+
 /**
  * 重写jain sip的SIPDate解决与国标时间格式不一致的问题
  */
 public class WvpSipDate extends SIPDate {
 
+    private Calendar javaCal;
+
     public WvpSipDate(long timeMillis) {
-        super(timeMillis);
+        this.javaCal = new GregorianCalendar(TimeZone.getDefault(), Locale.getDefault());
+        Date date = new Date(timeMillis);
+        this.javaCal.setTime(date);
+        this.wkday = this.javaCal.get(7);
+        switch(this.wkday) {
+            case 1:
+                this.sipWkDay = "Sun";
+                break;
+            case 2:
+                this.sipWkDay = "Mon";
+                break;
+            case 3:
+                this.sipWkDay = "Tue";
+                break;
+            case 4:
+                this.sipWkDay = "Wed";
+                break;
+            case 5:
+                this.sipWkDay = "Thu";
+                break;
+            case 6:
+                this.sipWkDay = "Fri";
+                break;
+            case 7:
+                this.sipWkDay = "Sat";
+                break;
+            default:
+                InternalErrorHandler.handleException("No date map for wkday " + this.wkday);
+        }
+
+        this.day = this.javaCal.get(5);
+        this.month = this.javaCal.get(2);
+        switch(this.month) {
+            case 0:
+                this.sipMonth = "Jan";
+                break;
+            case 1:
+                this.sipMonth = "Feb";
+                break;
+            case 2:
+                this.sipMonth = "Mar";
+                break;
+            case 3:
+                this.sipMonth = "Apr";
+                break;
+            case 4:
+                this.sipMonth = "May";
+                break;
+            case 5:
+                this.sipMonth = "Jun";
+                break;
+            case 6:
+                this.sipMonth = "Jul";
+                break;
+            case 7:
+                this.sipMonth = "Aug";
+                break;
+            case 8:
+                this.sipMonth = "Sep";
+                break;
+            case 9:
+                this.sipMonth = "Oct";
+                break;
+            case 10:
+                this.sipMonth = "Nov";
+                break;
+            case 11:
+                this.sipMonth = "Dec";
+                break;
+            default:
+                InternalErrorHandler.handleException("No date map for month " + this.month);
+        }
+
+        this.year = this.javaCal.get(1);
+        this.hour = this.javaCal.get(11);
+        this.minute = this.javaCal.get(12);
+        this.second = this.javaCal.get(13);
     }
 
     @Override