diff --git a/examples/companion_radio/ui-new/UITask.cpp b/examples/companion_radio/ui-new/UITask.cpp
index 051f3b31..bcc94d63 100644
--- a/examples/companion_radio/ui-new/UITask.cpp
+++ b/examples/companion_radio/ui-new/UITask.cpp
@@ -109,7 +109,13 @@ class HomeScreen : public UIScreen {
   bool _shutdown_init;
   AdvertPath recent[UI_RECENT_LIST_SIZE];
 
-
+  // Uptime tracking
+  // Stores the last 32-bit millis() value used to calculate elapsed time.
+  // uint32_t naturally handles the ~49.7-day millis() rollover.
+  uint32_t uptime_last_millis = millis();
+  // 64-bit accumulated uptime in milliseconds.
+  // Allows uptime to continue beyond the 49.7-day millis() rollover.
+  uint64_t uptime_millis = 0;
   void renderBatteryIndicator(DisplayDriver& display, uint16_t batteryMilliVolts) {
     // Convert millivolts to percentage
 #ifndef BATT_MIN_MILLIVOLTS
@@ -131,6 +137,27 @@ class HomeScreen : public UIScreen {
     int iconY = 0;
     display.setColor(UIColor::title_txt);
 
+    // Uptime
+    uint32_t now = millis();
+    uptime_millis += (uint32_t)(now - uptime_last_millis);
+    uptime_last_millis = now;
+
+    uint64_t uptimeMinutes = uptime_millis / 60000ULL;
+    char uptime[16];
+    if (uptimeMinutes < 60) {
+      snprintf(uptime, sizeof(uptime), "%lum", (unsigned long)uptimeMinutes);
+    } else if (uptimeMinutes < 1440) {
+      snprintf(uptime, sizeof(uptime), "%luh", (unsigned long)(uptimeMinutes / 60));
+    } else {
+      snprintf(uptime, sizeof(uptime), "%lud", (unsigned long)(uptimeMinutes / 1440));
+    }
+
+    display.setTextSize(1);
+    int uptimeWidth = display.getTextWidth(uptime);
+    int spaceWidth = display.getTextWidth(" ");
+    display.setCursor(iconX - uptimeWidth - spaceWidth, iconY); // 1 extra space between uptime and battery icon
+    display.print(uptime);
+
     // battery outline
     display.drawRect(iconX, iconY, iconWidth, iconHeight);