diff --git a/src/corelib/kernel/qdeadlinetimer.cpp b/src/corelib/kernel/qdeadlinetimer.cpp
index d012390c5b9..a5d16ddf65d 100644
--- a/src/corelib/kernel/qdeadlinetimer.cpp
+++ b/src/corelib/kernel/qdeadlinetimer.cpp
@@ -431,7 +431,6 @@ inline bool TimeReference::toNanoseconds(qint64 *result) const
     \sa hasExpired(), isForever(), remainingTime(), setRemainingTime()
 */
 QDeadlineTimer::QDeadlineTimer(qint64 msecs, Qt::TimerType type) noexcept
-    : t2(0)
 {
     setRemainingTime(msecs, type);
 }
diff --git a/src/corelib/kernel/qdeadlinetimer.h b/src/corelib/kernel/qdeadlinetimer.h
index 980a2866e0d..612b77b11f3 100644
--- a/src/corelib/kernel/qdeadlinetimer.h
+++ b/src/corelib/kernel/qdeadlinetimer.h
@@ -26,9 +26,9 @@ public:
     enum ForeverConstant { Forever };
 
     constexpr QDeadlineTimer(Qt::TimerType type_ = Qt::CoarseTimer) noexcept
-        : t1(0), t2(0), type(type_) {}
+        : type(type_) {}
     constexpr QDeadlineTimer(ForeverConstant, Qt::TimerType type_ = Qt::CoarseTimer) noexcept
-        : t1((std::numeric_limits<qint64>::max)()), t2(0), type(type_) {}
+        : t1((std::numeric_limits<qint64>::max)()), type(type_) {}
     explicit QDeadlineTimer(qint64 msecs, Qt::TimerType type = Qt::CoarseTimer) noexcept;
 
     void swap(QDeadlineTimer &other) noexcept
@@ -141,8 +141,8 @@ public:
     { return dt = dt + value; }
 
 private:
-    qint64 t1;
-    unsigned t2;
+    qint64 t1 = 0;
+    unsigned t2 = 0;
     unsigned type;
 
     qint64 rawRemainingTimeNSecs() const noexcept;
diff --git a/src/corelib/kernel/qelapsedtimer.h b/src/corelib/kernel/qelapsedtimer.h
index a4db43304a8..ab32265cba1 100644
--- a/src/corelib/kernel/qelapsedtimer.h
+++ b/src/corelib/kernel/qelapsedtimer.h
@@ -21,11 +21,7 @@ public:
         PerformanceCounter
     };
 
-    constexpr QElapsedTimer()
-        : t1(Q_INT64_C(0x8000000000000000)),
-          t2(Q_INT64_C(0x8000000000000000))
-    {
-    }
+    constexpr QElapsedTimer() = default;
 
     static ClockType clockType() noexcept;
     static bool isMonotonic() noexcept;
@@ -51,8 +47,8 @@ public:
     friend bool Q_CORE_EXPORT operator<(const QElapsedTimer &lhs, const QElapsedTimer &rhs) noexcept;
 
 private:
-    qint64 t1;
-    qint64 t2;
+    qint64 t1 = Q_INT64_C(0x8000000000000000);
+    qint64 t2 = Q_INT64_C(0x8000000000000000);
 };
 
 QT_END_NAMESPACE