diff --git a/src/views/perfManage/overview/index.vue b/src/views/perfManage/overview/index.vue
index 26d1dfc8..0155cf99 100644
--- a/src/views/perfManage/overview/index.vue
+++ b/src/views/perfManage/overview/index.vue
@@ -1107,7 +1107,26 @@ function updateChart(config: {
           if (!params || params.length === 0) return ''
           const param = params[0]
           if (config.dataType === 'hourly') {
-            return `${param.name}Hour: 0`
+            // 将小时数转换为AM/PM格式
+            const hour = parseInt(param.name)
+            let displayHour = hour
+            let period = 'AM'
+
+            if (hour === 0) {
+              displayHour = 12
+              period = 'AM'
+            } else if (hour < 12) {
+              displayHour = hour
+              period = 'AM'
+            } else if (hour === 12) {
+              displayHour = 12
+              period = 'PM'
+            } else {
+              displayHour = hour - 12
+              period = 'PM'
+            }
+
+            return `${displayHour} ${period}：0`
           } else if (config.dataType === 'realtime-enhanced') {
             const minutesAgo = defaultData.length - 1 - param.dataIndex
             return `${minutesAgo}Min ago: 0`
@@ -1227,7 +1246,26 @@ function updateChart(config: {
         const formatValue = config.formatValue || ((val: number) => val.toString())
         const value = typeof param.value === 'object' ? param.value.value : param.value
         if (config.dataType === 'hourly') {
-          return `${param.name}Hour: ${formatValue(value)}`
+          // 将小时数转换为AM/PM格式
+          const hour = parseInt(param.name)
+          let displayHour = hour
+          let period = 'AM'
+
+          if (hour === 0) {
+            displayHour = 12
+            period = 'AM'
+          } else if (hour < 12) {
+            displayHour = hour
+            period = 'AM'
+          } else if (hour === 12) {
+            displayHour = 12
+            period = 'PM'
+          } else {
+            displayHour = hour - 12
+            period = 'PM'
+          }
+
+          return `${displayHour} ${period}：${formatValue(value)}`
         } else if (config.dataType === 'realtime-enhanced') {
           // 对于增强实时数据，计算实际的分钟数
           const minutesAgo = processedData.length - 1 - param.dataIndex