diff --git a/src/Uno.UI.Runtime.Skia.MacOS/UnoNativeMac/UnoNativeMac/UNOApplication.m b/src/Uno.UI.Runtime.Skia.MacOS/UnoNativeMac/UnoNativeMac/UNOApplication.m
index 5eac3ebf1a47..e8562e0ab118 100644
--- a/src/Uno.UI.Runtime.Skia.MacOS/UnoNativeMac/UnoNativeMac/UNOApplication.m
+++ b/src/Uno.UI.Runtime.Skia.MacOS/UnoNativeMac/UnoNativeMac/UNOApplication.m
@@ -7,7 +7,8 @@
 static UNOApplicationDelegate *ad;
 static system_theme_change_fn_ptr system_theme_change;
 static id<MTLDevice> device;
-static NSTimeInterval uptime = 0;
+static NSTimeInterval initialUptime = 0;
+static NSDate *initialUptimeDate = nil;
 
 inline system_theme_change_fn_ptr uno_get_system_theme_change_callback(void)
 {
@@ -30,10 +31,15 @@ void uno_set_system_theme_change_callback(system_theme_change_fn_ptr p)
 
 NSTimeInterval uno_get_system_uptime(void)
 {
-    if (uptime == 0) {
-        uptime = NSProcessInfo.processInfo.systemUptime;
+    if (initialUptime == 0) {
+        initialUptime = NSProcessInfo.processInfo.systemUptime;
+        initialUptimeDate = [NSDate date];
+        return initialUptime;
+    }
+    else {
+        NSTimeInterval elapsedTime = [[NSDate date] timeIntervalSinceDate:initialUptimeDate];
+        return initialUptime + elapsedTime;
     }
-    return uptime;
 }
 
 bool uno_app_initialize(bool *metal)