1 files changed, 19 insertions, 2 deletions
diff --git a/src/corelib/kernel/qbasictimer.h b/src/corelib/kernel/qbasictimer.h
index e3a41822de..ccc93f6e9b 100644
--- a/src/corelib/kernel/qbasictimer.h
+++ b/src/corelib/kernel/qbasictimer.h
@@ -7,6 +7,8 @@
 #include <QtCore/qglobal.h>
 #include <QtCore/qnamespace.h>
 
+#include <chrono>
+
 QT_BEGIN_NAMESPACE
 
 
@@ -22,7 +24,7 @@ public:
     inline ~QBasicTimer() { if (id) stop(); }
 
     QBasicTimer(QBasicTimer &&other) noexcept
-        : id{qExchange(other.id, 0)}
+        : id{std::exchange(other.id, 0)}
     {}
 
     QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_MOVE_AND_SWAP(QBasicTimer)
@@ -31,13 +33,28 @@ public:
 
     bool isActive() const noexcept { return id != 0; }
     int timerId() const noexcept { return id; }
-
+    QT_CORE_INLINE_SINCE(6, 5)
     void start(int msec, QObject *obj);
+    QT_CORE_INLINE_SINCE(6, 5)
     void start(int msec, Qt::TimerType timerType, QObject *obj);
+    void start(std::chrono::milliseconds duration, QObject *obj);
+    void start(std::chrono::milliseconds duration, Qt::TimerType timerType, QObject *obj);
     void stop();
 };
 Q_DECLARE_TYPEINFO(QBasicTimer, Q_RELOCATABLE_TYPE);
 
+#if QT_CORE_INLINE_IMPL_SINCE(6, 5)
+void QBasicTimer::start(int msec, QObject *obj)
+{
+    start(std::chrono::milliseconds{msec}, obj);
+}
+
+void QBasicTimer::start(int msec, Qt::TimerType t, QObject *obj)
+{
+    start(std::chrono::milliseconds{msec}, t, obj);
+}
+#endif
+
 inline void swap(QBasicTimer &lhs, QBasicTimer &rhs) noexcept { lhs.swap(rhs); }
 
 QT_END_NAMESPACE