diff --git a/app/common.php b/app/common.php
index f9f6053..518a105 100644
--- a/app/common.php
+++ b/app/common.php
@@ -1510,10 +1510,7 @@ function advancedDate($type)
 }
 
 /**
- * 间隔时间段格式化
- * @param int $time 时间戳
- * @param string $format 格式 【d：显示到天 i显示到分钟 s显示到秒】
- * @return string
+ * 计算按天数
  */
 function countDays($a, $b = 0)
 {
diff --git a/app/contract/model/Contract.php b/app/contract/model/Contract.php
index 6377831..814adb5 100644
--- a/app/contract/model/Contract.php
+++ b/app/contract/model/Contract.php
@@ -65,6 +65,7 @@ class Contract extends Model
 				$item->type_name = self::$Type[(int)$item->type_a];
 				$item->status_name = self::$Status[(int)$item->check_status];
 				$item->chack_status_name = self::$Status[(int) $item->CheckStatus];
+                $item->delay = countDays(date("Y-m-d"),date('Y-m-d', $item->end_time));
 				if($item->cost == 0){
 					$item->cost = '-';
 				}
diff --git a/app/contract/view/index/index.html b/app/contract/view/index/index.html
index 45b65c9..1d40a7e 100644
--- a/app/contract/view/index/index.html
+++ b/app/contract/view/index/index.html
@@ -93,6 +93,21 @@
 							var html = '<span class="layui-color-' + d.type_a + '">' + d.type_name + '</span>';
 							return html;
 						}
+					},{
+						field: 'interval_time',
+						title: '合同有效时间',
+						align: 'center',
+						width: 248,
+						templet: function (d) {
+						var html = d.interval_time;
+						if (d.delay > 0 && d.delay < 30) {
+							html += '<span class="red ml-1" style="font-size:12px;">' + d.delay + '天后到期</span>';
+						}
+						if (d.delay == 0) {
+							html += '<span class="red ml-1" style="font-size:12px;">已过期</span>';
+						}
+						return html;
+					}
 					},{
 						field: 'cost',
 						title: '合同金额/元',