diff --git a/hw/mc146818rtc.c b/hw/mc146818rtc.c
index 2aaca2f..568c540 100644
--- a/hw/mc146818rtc.c
+++ b/hw/mc146818rtc.c
@@ -667,6 +667,28 @@ ISADevice *rtc_init(int base_year, qemu_irq intercept_irq)
     return dev;
 }
 
+void rtc_stop(ISADevice *dev)
+{
+    RTCState *s = DO_UPCAST(RTCState, dev, dev);
+
+    qemu_del_timer(s->periodic_timer);
+    qemu_del_timer(s->second_timer);
+    qemu_del_timer(s->second_timer2);
+#ifdef TARGET_I386
+    if (rtc_td_hack) {
+        qemu_del_timer(s->coalesced_timer);
+    }
+#endif
+    qemu_free_timer(s->periodic_timer);
+    qemu_free_timer(s->second_timer);
+    qemu_free_timer(s->second_timer2);
+#ifdef TARGET_I386
+    if (rtc_td_hack) {
+        qemu_free_timer(s->coalesced_timer);
+    }
+#endif
+}
+
 static ISADeviceInfo mc146818rtc_info = {
     .qdev.name     = "mc146818rtc",
     .qdev.size     = sizeof(RTCState),
diff --git a/hw/mc146818rtc.h b/hw/mc146818rtc.h
index 575968c..aa2b8ab 100644
--- a/hw/mc146818rtc.h
+++ b/hw/mc146818rtc.h
@@ -8,5 +8,6 @@
 ISADevice *rtc_init(int base_year, qemu_irq intercept_irq);
 void rtc_set_memory(ISADevice *dev, int addr, int val);
 void rtc_set_date(ISADevice *dev, const struct tm *tm);
+void rtc_stop(ISADevice *dev);
 
 #endif /* !MC146818RTC_H */
diff --git a/hw/pc.c b/hw/pc.c
index a0ae981..d734f75 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -1145,6 +1145,8 @@ void pc_basic_device_init(qemu_irq *gsi,
 
     if (!xen_available()) {
         pit = pit_init(0x40, 0);
+    } else {
+        rtc_stop(*rtc_state);
     }
     pcspk_init(pit);