diff --git a/edc-web/app/static/js/test_data.js b/edc-web/app/static/js/test_data.js
index 2916e2a..facc6d5 100644
--- a/edc-web/app/static/js/test_data.js
+++ b/edc-web/app/static/js/test_data.js
@@ -81,7 +81,10 @@ function toSpeed(v) {
 
 function fmtTime(v) {
     if (!v) return '-';
-    const d = new Date(v);
+    // Flask jsonify 给 MySQL DATETIME 加 "GMT" 后缀，但实际值是服务器本地时间（UTC+8）
+    // 去掉 "GMT" 让 JS 按本地时间解析，避免时区偏移 8 小时
+    const cleaned = String(v).replace(/ GMT$/, '');
+    const d = new Date(cleaned);
     if (isNaN(d.getTime())) return String(v).substring(0, 19);
     const y = d.getFullYear();
     const m = String(d.getMonth() + 1).padStart(2, '0');
diff --git a/edc-web/app/static/js/test_op.js b/edc-web/app/static/js/test_op.js
index 7b52d6c..bd52a56 100644
--- a/edc-web/app/static/js/test_op.js
+++ b/edc-web/app/static/js/test_op.js
@@ -200,6 +200,12 @@ async function pollProgress() {
         const data = await resp.json();
         const stats = data.stats;
 
+        // ── 先渲染数据（放在所有 return 之前，避免完成时跳过渲染）──
+        try { if (data.latest) renderLatest(data.latest); } catch (e) { console.error("renderLatest:", e); }
+        try { if (data.averages) renderAverages(data.averages); } catch (e) { console.error("renderAverages:", e); }
+        try { if (data.latest_wave) renderLatestWave(data.latest_wave); } catch (e) { console.error("renderLatestWave:", e); }
+        try { if (data.records && data.records.length) renderRecords(data.records); } catch (e) { console.error("renderRecords:", e); }
+
         // 更新计数
         const newDone = stats.done || 0;
         const newFailed = stats.failed || 0;
@@ -244,12 +250,6 @@ async function pollProgress() {
             }
         }
 
-        // 显示最新结果（独立 try-catch，避免一处报错影响全部）
-        try { if (data.latest) renderLatest(data.latest); } catch (e) { console.error("renderLatest:", e); }
-        try { if (data.averages) renderAverages(data.averages); } catch (e) { console.error("renderAverages:", e); }
-        try { if (data.latest_wave) renderLatestWave(data.latest_wave); } catch (e) { console.error("renderLatestWave:", e); }
-        try { if (data.records && data.records.length) renderRecords(data.records); } catch (e) { console.error("renderRecords:", e); }
-
     } catch (e) {
         console.error("轮询失败:", e);
     }
@@ -293,7 +293,10 @@ function toSpeed(v) {
 
 function fmtTime(v) {
     if (!v) return '-';
-    const d = new Date(v);
+    // Flask jsonify 给 MySQL DATETIME 加 "GMT" 后缀，但实际值是服务器本地时间（UTC+8）
+    // 去掉 "GMT" 让 JS 按本地时间解析，避免时区偏移 8 小时
+    const cleaned = String(v).replace(/ GMT$/, '');
+    const d = new Date(cleaned);
     if (isNaN(d.getTime())) return String(v).substring(0, 19);
     const y = d.getFullYear();
     const m = String(d.getMonth() + 1).padStart(2, '0');