diff --git a/src/views/bigScreen/cesiumtest.vue b/src/views/bigScreen/cesiumtest.vue
index 8f14537f..3c2ea4b8 100644
--- a/src/views/bigScreen/cesiumtest.vue
+++ b/src/views/bigScreen/cesiumtest.vue
@@ -438,9 +438,16 @@ export default {
 		});
 		this.viewer = viewer;
 		// 关闭时间对模型明暗的影响
-		viewer.scene.light = new Cesium.DirectionalLight({ 
-  direction: new Cesium.Cartesian3(0.354925, -0.890918, -0.283358)
-})
+// 		viewer.scene.light = new Cesium.DirectionalLight({ 
+//   direction: new Cesium.Cartesian3(0.354925, -0.890918, -0.283358)
+// })
+		viewer.scene.light = new Cesium.SunLight();
+		viewer.scene.globe.enableLighting = true;
+		viewer.shadows = false;
+		//时间轴暂停，并将时间设置在某个固定时刻
+       viewer.clock.shouldAnimate = false;//时间轴动画停止
+       viewer.clock.currentTime = Cesium.JulianDate.fromIso8601("2023-09-01T06:00:00Z");//这个UTC时间对应的北京时间是14时
+
 		if (Cesium.FeatureDetection.supportsImageRenderingPixelated()) {
 			//判断是否支持图像渲染像素化处理
 			viewer.resolutionScale = window.devicePixelRatio;