diff --git a/static/chart_main/sevencoin.js b/static/chart_main/sevencoin.js
index 791c6bc..4657935 100644
--- a/static/chart_main/sevencoin.js
+++ b/static/chart_main/sevencoin.js
@@ -296,9 +296,8 @@ $(function () {
 		    const year = date.getUTCFullYear();
 		    const start = new Date(Date.UTC(year, 2, 8, 18)); // March, 2nd Sunday
 		    const end = new Date(Date.UTC(year, 10, 3, 18)); // November, 1st Sunday
-		    console.log(start);
-		    start.setUTCDate(14 - start.getUTCDay());
-		    end.setUTCDate(7 - end.getUTCDay());
+		    start.setUTCDate(13 - start.getUTCDay());
+		    end.setUTCDate(3 - end.getUTCDay());
 		
 		    return date >= start && date < end;
 		}
diff --git a/utils/class/date.js b/utils/class/date.js
index c09eafe..745faf6 100644
--- a/utils/class/date.js
+++ b/utils/class/date.js
@@ -38,7 +38,7 @@ function time2Date(time, isOffset = false) {
 			// 这也是对时差进行转换，不需要在每个处理时间格式的组件中修改isOffset为true
 			// timeN = time-(-28800000)+(new Date(new Date().getTime()).getTimezoneOffset()* 60 * 1000);
 			// 这也是对时差进行转换，不需要在每个处理时间格式的组件中修改isOffset为true
-			timeN = isInEDT ? time - (-28800000)+(new Date(new Date().getTime()).getTimezoneOffset()* 60 * 1000) - 43200000 : time - (-28800000)+(new Date(new Date().getTime()).getTimezoneOffset()* 60 * 1000) - 46800000;
+			timeN = isInEDT ? time - (-28800000)+(new Date(new Date().getTime()).getTimezoneOffset()* 60 * 1000) - 43200000 : time - (-28800000)+(new Date(new Date().getTime()).getTimezoneOffset()* 60 * 1000);
 		}
 
         // 转化成日期时间对象
@@ -53,8 +53,8 @@ function dateIsInEDT(date) {
     const year = date.getUTCFullYear();
     const start = new Date(Date.UTC(year, 2, 8, 18)); // March, 2nd Sunday
     const end = new Date(Date.UTC(year, 10, 3, 18)); // November, 1st Sunday
-    start.setUTCDate(14 - start.getUTCDay());
-    end.setUTCDate(7 - end.getUTCDay());
+    start.setUTCDate(13 - start.getUTCDay());
+    end.setUTCDate(3 - end.getUTCDay());
 
     return date >= start && date < end;
 }