diff --git a/APP/light.c b/APP/light.c
index 05df5ff..8bde3f6 100644
--- a/APP/light.c
+++ b/APP/light.c
@@ -98,6 +98,11 @@ static void prv_time_light_control_schedule() {
      * @brief 显示自动关机倒计时指示灯
      */
     int lightnum = hook_get_autoshutdown_timecount() / AUTO_SHUTDOWN_ONE_LIGHT_EQ_TIME_S;
+    int lightnum_remainder = hook_get_autoshutdown_timecount() % AUTO_SHUTDOWN_ONE_LIGHT_EQ_TIME_S;
+    if (lightnum_remainder != 0) {
+      lightnum += 1;
+    }
+
     prv_set_timing_light_mode(  //
         get_timing_light_mode_by_lightnum(lightnum));
   } else if (s_errorlight_display_state) {