diff --git a/src/components/vm/confirmDialog.jsx b/src/components/vm/confirmDialog.jsx
index a0bc44b2b..3c44fa109 100644
--- a/src/components/vm/confirmDialog.jsx
+++ b/src/components/vm/confirmDialog.jsx
@@ -27,6 +27,7 @@ import { useDialogs } from 'dialogs.jsx';
 import { distanceToNow } from 'timeformat.js';
 
 import { domainGetStartTime } from '../../libvirtApi/domain.js';
+import { Enum } from '../../libvirtApi/helpers.js';
 
 const _ = cockpit.gettext;
 
@@ -60,18 +61,56 @@ export const ConfirmDialog = ({ idPrefix, actionsList, title, titleIcon, vm }) =
         </Button>
     );
 
-    let body = (
-        <Bullseye>
-            <Spinner />
-        </Bullseye>
-    );
+    let body;
+    if (dialogLoading) {
+        body = (
+            <Bullseye>
+                <Spinner />
+            </Bullseye>
+        );
+    } else if (uptime) {
+        let uptimeStr = distanceToNow(new Date(uptime));
+
+        // https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainRunningReason
+        switch (vm.stateReason) {
+        case Enum.VIR_DOMAIN_RUNNING_MIGRATED:
+        case Enum.VIR_DOMAIN_RUNNING_POSTCOPY: {
+            uptimeStr = cockpit.format(_("$0 since migration"), uptimeStr);
+            break;
+        }
+        case Enum.VIR_DOMAIN_RUNNING_FROM_SNAPSHOT: {
+            uptimeStr = cockpit.format(_("$0 since reverting to snapshot"), uptimeStr);
+            break;
+        }
+        case Enum.VIR_DOMAIN_RUNNING_RESTORED:
+        case Enum.VIR_DOMAIN_RUNNING_UNPAUSED: {
+            uptimeStr = cockpit.format(_("$0 since VM was resumed"), uptimeStr);
+            break;
+        }
+        case Enum.VIR_DOMAIN_RUNNING_MIGRATION_CANCELED:
+        case Enum.VIR_DOMAIN_RUNNING_POSTCOPY_FAILED: {
+            uptimeStr = cockpit.format(_("$0 since migration was cancelled"), uptimeStr);
+            break;
+        }
+        case Enum.VIR_DOMAIN_RUNNING_SAVE_CANCELED: {
+            uptimeStr = cockpit.format(_("$0 since failed save process"), uptimeStr);
+            break;
+        }
+        case Enum.VIR_DOMAIN_RUNNING_WAKEUP: {
+            uptimeStr = cockpit.format(_("$0 since wakeup event"), uptimeStr);
+            break;
+        }
+        case Enum.VIR_DOMAIN_RUNNING_CRASHED: {
+            uptimeStr = cockpit.format(_("$0 since resumed from crash"), uptimeStr);
+            break;
+        }
+        }
 
-    if (!dialogLoading) {
-        body = (uptime &&
+        body = (
             <DescriptionList isHorizontal>
                 <DescriptionListGroup>
                     <DescriptionListTerm>{_("Uptime")}</DescriptionListTerm>
-                    <DescriptionListDescription id="uptime">{distanceToNow(new Date(uptime))}</DescriptionListDescription>
+                    <DescriptionListDescription id="uptime">{uptimeStr}</DescriptionListDescription>
                 </DescriptionListGroup>
             </DescriptionList>
         );
diff --git a/test/check-machines-lifecycle b/test/check-machines-lifecycle
index e9c546b2f..912ffbfb7 100755
--- a/test/check-machines-lifecycle
+++ b/test/check-machines-lifecycle
@@ -232,6 +232,8 @@ class TestMachinesLifecycle(VirtualMachinesCase):
         self.performAction("subVmTest2", "forceOff")
 
         b.click("#vm-subVmTest2-system-run")
+        # wait for libvirt to update the internal state (reason) of VM
+        wait(lambda: "running (booted)" in m.execute("virsh domstate --reason subVmTest2"), delay=3)
 
         # Check uptime
         b.click("#vm-subVmTest2-system-shutdown-button")
@@ -244,6 +246,19 @@ class TestMachinesLifecycle(VirtualMachinesCase):
         b.click(".pf-c-modal-box__footer button:contains(Cancel)")
         b.wait_not_present("#vm-subVmTest2-system-confirm-action-modal")
 
+        # Check uptime with VM boot message
+        # Non-privileged user doesn't have access to system-connection VM's logs
+        if superuser:
+            m.execute("virsh managedsave --domain subVmTest2")
+            m.execute("virsh start --domain subVmTest2")
+            # wait for libvirt to update the internal state (reason) of VM
+            wait(lambda: "running (restored)" in m.execute("virsh domstate --reason subVmTest2"), delay=3)
+            b.click("#vm-subVmTest2-system-shutdown-button")
+            b.wait_visible("#vm-subVmTest2-system-confirm-action-modal")
+            b.wait_in_text("#vm-subVmTest2-system-confirm-action-modal #uptime", "since VM was resumed")
+            b.click(".pf-c-modal-box__footer button:contains(Cancel)")
+            b.wait_not_present("#vm-subVmTest2-system-confirm-action-modal")
+
         b.set_input_text("#text-search", "subVmTest2")
         self.waitVmRow("subVmTest2")
         self.waitVmRow("subVmTest1", "system", False)