diff --git a/src/mixins/plugins.js b/src/mixins/plugins.js
index 75163d2..3e032f3 100644
--- a/src/mixins/plugins.js
+++ b/src/mixins/plugins.js
@@ -85,40 +85,17 @@ const formatRemainTimeData = (endTime) => {
 const timeContrast = (startTime, endTime) => {
   let dateEnd = new Date(endTime.replace(/-/g, '/'))
   let dateBegin = new Date(startTime.replace(/-/g, '/'))
-  let retValue = {}
   let date3 = dateEnd.getTime() - dateBegin.getTime()  // 时间差的毫秒数
   // 计算出相差天数
   let days = Math.floor(date3 / (24 * 3600 * 1000))
-  retValue.Days = days
   let years = Math.floor(days / 365)
-  retValue.Years = years
   let months = Math.floor(days / 30)
-  retValue.Months = months
   // 计算出小时数
   let leave1 = date3 % (24 * 3600 * 1000)    // 计算天数后剩余的毫秒数
   let hours = Math.floor(leave1 / (3600 * 1000))
-  retValue.Hours = hours
   // 计算相差分钟数
   let leave2 = leave1 % (3600 * 1000)        // 计算小时数后剩余的毫秒数
   let minutes = Math.floor(leave2 / (60 * 1000))
-  retValue.Minutes = minutes
-  // 计算相差秒数
-  let leave3 = leave2 % (60 * 1000)      // 计算分钟数后剩余的毫秒数
-  let seconds = Math.round(leave3 / 1000)
-  retValue.Seconds = seconds
-  let strTime = ''
-  if (years >= 1) {
-    strTime = years + '年前'
-  } else if (months >= 1) {
-    strTime = months + '个月前'
-  } else if (days >= 1) {
-    strTime = days + '天前'
-  } else if (hours >= 1) {
-    strTime = hours + '小时前'
-  } else {
-    strTime = minutes + '分钟前'
-  }
-  retValue.PubTime = strTime
   return years >= 1 || months >= 1 || hours >= 1 || minutes >= 5
 }
 
diff --git a/src/pages/news/chitchat.wpy b/src/pages/news/chitchat.wpy
index 8ba36a3..c325efc 100644
--- a/src/pages/news/chitchat.wpy
+++ b/src/pages/news/chitchat.wpy
@@ -788,6 +788,7 @@ wepy.page({
     uploadState: false,
     progressValue: 0, // 上传进度
     lastId: '', // 历史记录分页数据最后一条id
+    firstTime: '', // 历史记录分页数据第一条的时间戳
     lastTime: '', // 历史记录分页数据最后一条的时间戳
     lastMsgId: '', // 历史记录分页数据最后一条的id
     beginTime: '', // 历史记录分页数据最后一条的时间
@@ -845,15 +846,18 @@ wepy.page({
             isSelf: true,
             avatar: vm.myAvatar,
             time: getTime(format(msg.time)),
-            showTime: timeContrast(format(msg.time), vm.lastTime),
+            showTime: timeContrast(vm.firstTime, format(msg.time)),
             name: vm.myName,
             userId: msg.from,
             isSend: 1,
             msgType: 'text'
           }
-          vm.msgList.splice(msgIndex, 1, msgNewObj)
-          vm.lastTime = format(msg.time)
-          vm.callbackSend('text')
+          setTimeout(() => {
+            vm.msgList.splice(msgIndex, 1, msgNewObj)
+            vm.firstTime = format(msg.time)
+            vm.lastTime = format(msg.time)
+            vm.callbackSend('text')
+          })
         }
       })
     },
@@ -881,12 +885,13 @@ wepy.page({
             isSelf: true,
             avatar: vm.myAvatar,
             time: getTime(format(msg.time)),
-            showTime: timeContrast(format(msg.time), vm.lastTime),
+            showTime: timeContrast(vm.firstTime, format(msg.time)),
             name: msg.fromNick,
             userId: msg.from,
             isSend: msg.status == 'sendFailed' ? 2 : 1, // sendFailed 发送失败
             msgType: 'image'
           })
+          vm.firstTime = format(msg.time)
           vm.lastTime = format(msg.time)
           vm.callbackSend('picture')
           vm.$nextTick(() => {
@@ -926,13 +931,14 @@ wepy.page({
             isSelf: true,
             avatar: vm.myAvatar,
             time: getTime(format(msg.time)),
-            showTime: timeContrast(format(msg.time), vm.lastTime),
+            showTime: timeContrast(vm.firstTime, format(msg.time)),
             videoDur: getVideoTime(msg.attach.dur),
             name: msg.fromNick,
             userId: msg.from,
             isSend: 1,
             msgType: 'video'
           })
+          vm.firstTime = format(msg.time)
           vm.lastTime = format(msg.time)
           vm.callbackSend('video')
           vm.$nextTick(() => {
@@ -972,7 +978,7 @@ wepy.page({
             isSelf: true,
             avatar: vm.myAvatar,
             time: getTime(format(msg.time)),
-            showTime: timeContrast(format(msg.time), vm.lastTime),
+            showTime: timeContrast(vm.firstTime, format(msg.time)),
             videoDur: getVideoTime(msg.attach.dur),
             audioDur: (msg.attach.dur / 1000).toFixed(0),
             name: msg.fromNick,
@@ -980,6 +986,7 @@ wepy.page({
             isSend: 1,
             msgType: 'audio'
           })
+          vm.firstTime = format(msg.time)
           vm.lastTime = format(msg.time)
           vm.callbackSend('audio')
           vm.$nextTick(() => {
@@ -1007,6 +1014,7 @@ wepy.page({
         isSend: 2,
         msgType: 'image'
       })
+      vm.firstTime = format(timeData)
       vm.lastTime = format(timeData)
       vm.$nextTick(() => {
         vm.toView = `id_${timeData}`
@@ -1055,7 +1063,7 @@ wepy.page({
         isSelf: false,
         avatar: vm.otherAvatar,
         time: getTime(format(e.time)),
-        showTime: timeContrast(format(e.time), vm.msgList && vm.msgList.length > 0 ? `${vm.msgList[vm.msgList.length - 1].timestamp}` : ''),
+        showTime: timeContrast(vm.firstTime, format(e.time)),
         videoDur: e.type == 'video' ? getVideoTime(e.attach.dur) : '',
         audioDur: e.type == 'audio' ? (e.attach.dur / 1000).toFixed(0) : '',
         name: e.fromNick,
@@ -1064,6 +1072,7 @@ wepy.page({
         msgType: e.type
       })
       vm.toView = `id_${e.time}`
+      vm.firstTime = format(e.time)
       vm.lastTime = format(e.time)
     },
     // 获取历史消息数据
@@ -1096,6 +1105,9 @@ wepy.page({
               } else {
                 item.body = item.content
               }
+              if (!vm.lastId) {
+                vm.firstTime = format(data[0].time)
+              }
               vm.lastTime = format(item.time)
             })
 
diff --git a/src/pages/news/groupChitchat.wpy b/src/pages/news/groupChitchat.wpy
index 9a0a191..d453428 100644
--- a/src/pages/news/groupChitchat.wpy
+++ b/src/pages/news/groupChitchat.wpy
@@ -708,6 +708,7 @@ wepy.page({
     uploadState: false,
     progressValue: 0, // 上传进度
     lastId: '', // 历史记录分页数据最后一条id
+    firstTime: '', // 历史记录分页数据第一条的时间戳
     lastTime: '', // 历史记录分页数据最后一条的时间戳
     lastMsgId: '', // 历史记录分页数据最后一条的id
     beginTime: '', // 历史记录分页数据最后一条的时间
@@ -785,6 +786,7 @@ wepy.page({
         id: `id_${timeData}`,
         isSelf: true,
         avatar: vm.myAvatar,
+        timestamp: timeData,
         name: vm.myName,
         userId: vm.myUserId,
         isSend: 0,
@@ -811,15 +813,18 @@ wepy.page({
             isSelf: true,
             avatar: vm.myAvatar,
             time: getTime(format(msg.time)),
-            showTime: timeContrast(format(msg.time), vm.lastTime),
+            showTime: timeContrast(vm.firstTime, format(msg.time)),
             name: vm.myName,
             userId: msg.from,
             isSend: 1,
             msgType: '0'
           }
-          vm.msgList.splice(msgIndex, 1, msgNewObj)
-          vm.lastTime = format(msg.time)
-          vm.callbackSend('text')
+          setTimeout(() => {
+            vm.msgList.splice(msgIndex, 1, msgNewObj)
+            vm.firstTime = format(msg.time)
+            vm.lastTime = format(msg.time)
+            vm.callbackSend('text')
+          })
         }
       })
     },
@@ -847,12 +852,13 @@ wepy.page({
             isSelf: true,
             avatar: vm.myAvatar,
             time: getTime(format(msg.time)),
-            showTime: timeContrast(format(msg.time), vm.lastTime),
+            showTime: timeContrast(vm.firstTime, format(msg.time)),
             name: msg.fromNick,
             userId: msg.from,
             isSend: 1,
             msgType: '1'
           })
+          vm.firstTime = format(msg.time)
           vm.lastTime = format(msg.time)
           vm.callbackSend('picture')
           vm.$nextTick(() => {
@@ -892,13 +898,14 @@ wepy.page({
             isSelf: true,
             avatar: vm.myAvatar,
             time: getTime(format(msg.time)),
-            showTime: timeContrast(format(msg.time), vm.lastTime),
+            showTime: timeContrast(vm.firstTime, format(msg.time)),
             videoDur: getVideoTime(msg.attach.dur),
             name: msg.fromNick,
             userId: msg.from,
             isSend: 1,
             msgType: '3'
           })
+          vm.firstTime = format(msg.time)
           vm.lastTime = format(msg.time)
           vm.callbackSend('video')
           vm.$nextTick(() => {
@@ -937,7 +944,7 @@ wepy.page({
             isSelf: true,
             avatar: vm.myAvatar,
             time: getTime(format(msg.time)),
-            showTime: timeContrast(format(msg.time), vm.lastTime),
+            showTime: timeContrast(vm.firstTime, format(msg.time)),
             videoDur: getVideoTime(msg.attach.dur),
             audioDur: (msg.attach.dur / 1000).toFixed(0),
             name: msg.fromNick,
@@ -945,6 +952,7 @@ wepy.page({
             isSend: 1,
             msgType: '2'
           })
+          vm.firstTime = format(msg.time)
           vm.lastTime = format(msg.time)
           vm.callbackSend('audio')
           vm.$nextTick(() => {
@@ -983,7 +991,7 @@ wepy.page({
       app.globalData.nim.session.resetSessionUnreadCount({
         id: `team-${vm.otherUserId}`
       }).then((res) => {
-        console.log(res, '///////////---------')
+        console.log(res, '标记IM信息已读---------')
       })
     },
     // 在当前页面接收到别人发送过来的消息
@@ -1008,7 +1016,7 @@ wepy.page({
           isSelf: false,
           avatar: res[0].avatar,
           time: getTime(format(e.time)),
-          showTime: timeContrast(format(e.time), vm.msgList && vm.msgList.length > 0 ? `${vm.msgList[vm.msgList.length - 1].timestamp}` : ''),
+          showTime: timeContrast(vm.firstTime, format(e.time)),
           videoDur: e.type == 'video' ? getVideoTime(e.attach.dur) : '',
           audioDur: e.type == 'audio' ? (e.attach.dur / 1000).toFixed(0) : '',
           name: e.fromNick,
@@ -1018,6 +1026,7 @@ wepy.page({
           tips: vm.groupNotification(e)
         })
         vm.toView = `id_${e.time}`
+        vm.firstTime = format(e.time)
         vm.lastTime = format(e.time)
         // 标记消息已读
         vm.teamsSessions()
@@ -1056,6 +1065,9 @@ wepy.page({
               } else {
                 item.body = item.body_arr.msg
               }
+              if (!vm.lastId) {
+                vm.firstTime = format(data[0].time)
+              }
               vm.lastTime = format(item.time)
               // 获取成员头像后再循环获取数据
               app.globalData.nim.user.getUsersNameCardFromServer({