diff --git a/src/common/DateUtil.js b/src/common/DateUtil.js
index 93e5dbd3..90cb1b77 100644
--- a/src/common/DateUtil.js
+++ b/src/common/DateUtil.js
@@ -68,30 +68,14 @@ export function formatSeconds(value) {
 }
 
 
-export function formatDuring(mss) {
-  var days = parseInt(mss / (1000 * 60 * 60 * 24));
-  var hours = parseInt((mss % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
-  var minutes = parseInt((mss % (1000 * 60 * 60)) / (1000 * 60));
-  var second = parseInt(mss / 1000 % 60);
-  
-  try {
-    days = Math.abs(days);
-  } catch (e) {
-
-  }
-  try {
-    hours = Math.abs(hours);
-  } catch (e) {
-
-  }
-  try {
-    minutes = Math.abs(minutes);
-  } catch (e) {
-
-  }
+export function formatDuring(s) {
+  let days =absFloor(s / (60 * 60 * 24)) ;
+  let hours = absFloor((s % (60 * 60 * 24)) / (  60 * 60));
+  let minutes =absFloor((s % (60 * 60)) / ( 60));
+  let second = absFloor(s % 60);
 
   if (days) {
-    return days + "天" + hours + "小时" + minutes + "分";
+    return days + "天" + hours + "小时" ;
   }
   if (hours) {
     return hours + "小时" + minutes + "分";
@@ -100,7 +84,10 @@ export function formatDuring(mss) {
     return minutes + "分";
   }
   return second + "秒";
-  // return days + "天" + hours + "小时" + minutes + "分";
+}
+
+export function absFloor(number){
+  return Math.abs(Math.floor(number));
 }
 
 /*
diff --git a/src/military/task/components/itemListTask/index.jsx b/src/military/task/components/itemListTask/index.jsx
index d2cd069e..cceb2083 100644
--- a/src/military/task/components/itemListTask/index.jsx
+++ b/src/military/task/components/itemListTask/index.jsx
@@ -1,6 +1,6 @@
 import React, { useEffect, useState } from 'react';
 import { Icon, Pagination } from 'antd';
-import { formatDuring, getImageUrl } from 'educoder';
+import { getImageUrl } from 'educoder';
 import Nodata from 'forge/Nodata';
 import { taskStatusAllArr } from '../../static';
 import Loading from "src/Loading";
diff --git a/src/military/task/taskList/index.jsx b/src/military/task/taskList/index.jsx
index 60beeb6f..eab6d676 100644
--- a/src/military/task/taskList/index.jsx
+++ b/src/military/task/taskList/index.jsx
@@ -89,17 +89,17 @@ export default ({ history, current_user, showLoginDialog }) => {
   function surplusTime(item) {
     let status = item.status;
     let surplus = item.collectingDays * 24 * 3600 - (new Date() - new Date(item.publishedAt || item.createdAt)) / 1000;
-    if (status >= 4) {
-      surplus += item.choosingDays * 24 * 3600;
+    if (status === 4) {
+      surplus = item.choosingDays * 24 * 3600 - (new Date() - new Date(item.collectingCompleteAt)) / 1000;
     }
-    if (status >= 5) {
+    if (status === 5) {
       surplus = item.makePublicDays * 24 * 3600 - (new Date() - new Date(item.makePublicAt)) / 1000;
     }
-    if (status >= 6) {
-      surplus += item.signingDays * 24 * 3600;
+    if (status === 6) {
+      surplus = item.signingDays * 24 * 3600 - (new Date() - new Date(item.publicityCompleteAt)) / 1000;
     }
-    if (status >= 7) {
-      surplus += item.payingDays * 24 * 3600;
+    if (status === 7) {
+      surplus = item.payingDays * 24 * 3600 - (new Date() - new Date(item.payingCompleteAt)) / 1000;
     }
 
     let surplusTimetext = formatDuring(surplus);