diff --git a/include/ui/mainwindow.h b/include/ui/mainwindow.h
index dd4bf3a..1213f06 100644
--- a/include/ui/mainwindow.h
+++ b/include/ui/mainwindow.h
@@ -15,7 +15,6 @@
 
 #ifndef MW_INTERFACE
 
-#include <QTime>
 #include <QTableWidgetItem>
 #include <QKeyEvent>
 #include <QSystemTrayIcon>
@@ -182,7 +181,7 @@ private:
     int icon_status = -1;
     std::shared_ptr<Configs::ProxyEntity> running;
     QString traffic_update_cache;
-    QTime last_test_time;
+    qint64 last_test_time = 0;
     //
     int proxy_last_order = -1;
     bool select_mode = false;
diff --git a/src/ui/mainwindow.cpp b/src/ui/mainwindow.cpp
index 47d5b47..5b7f4de 100644
--- a/src/ui/mainwindow.cpp
+++ b/src/ui/mainwindow.cpp
@@ -1239,10 +1239,8 @@ void MainWindow::refresh_status(const QString &traffic_update) {
         if (group != nullptr) group_name = group->name;
     }
 
-    if (last_test_time.addSecs(2) < QTime::currentTime()) {
-        auto txt = running == nullptr ? tr("Not Running")
-                                      : QString("[%1] %2").arg(group_name, running->bean->DisplayName()).left(30);
-        ui->label_running->setText(txt);
+    if (QDateTime::currentSecsSinceEpoch() - last_test_time > 2) {
+        ui->label_running->setText(running ? QString("[%1] %2").arg(group_name, running->bean->DisplayName()).left(30) : tr("Not Running"));
     }
     //
     auto display_socks = DisplayAddress(Configs::dataStore->inbound_address, Configs::dataStore->inbound_socks_port);
diff --git a/src/ui/mainwindow_grpc.cpp b/src/ui/mainwindow_grpc.cpp
index 687f059..cb928ab 100644
--- a/src/ui/mainwindow_grpc.cpp
+++ b/src/ui/mainwindow_grpc.cpp
@@ -195,7 +195,7 @@ void MainWindow::stopTests() {
 }
 
 void MainWindow::url_test_current() {
-    last_test_time = QTime::currentTime();
+    last_test_time = QDateTime::currentSecsSinceEpoch();
     ui->label_running->setText(tr("Testing"));
 
     runOnNewThread([=,this] {
@@ -208,7 +208,7 @@ void MainWindow::url_test_current() {
         if (!rpcOK || result.results.empty()) return;
 
         auto latency = result.results[0].latency_ms.value();
-        last_test_time = QTime::currentTime();
+        last_test_time = QDateTime::currentSecsSinceEpoch();
 
         runOnUiThread([=,this] {
             if (!result.results[0].error.value().empty()) {