diff --git a/vehicle-data-platform/apps/web/src/pages/Dashboard.tsx b/vehicle-data-platform/apps/web/src/pages/Dashboard.tsx
index d0cd7691..285bc3b8 100644
--- a/vehicle-data-platform/apps/web/src/pages/Dashboard.tsx
+++ b/vehicle-data-platform/apps/web/src/pages/Dashboard.tsx
@@ -107,6 +107,24 @@ function nextDate(value: string) {
   return date.toISOString().slice(0, 10);
 }
 
+function todayDateString() {
+  const date = new Date();
+  const year = date.getFullYear();
+  const month = String(date.getMonth() + 1).padStart(2, '0');
+  const day = String(date.getDate()).padStart(2, '0');
+  return `${year}-${month}-${day}`;
+}
+
+function previousDateString(value: string) {
+  const match = /^(\d{4})-(\d{2})-(\d{2})$/.exec(value.trim());
+  if (!match) return value;
+  const date = new Date(Number(match[1]), Number(match[2]) - 1, Number(match[3]) - 1);
+  const year = date.getFullYear();
+  const month = String(date.getMonth() + 1).padStart(2, '0');
+  const day = String(date.getDate()).padStart(2, '0');
+  return `${year}-${month}-${day}`;
+}
+
 function priorityIssueVehicleLabel(row: QualityIssueRow) {
   const identity = row.vin?.trim() && row.vin !== 'unknown' ? row.vin.trim() : row.phone?.trim();
   return [row.plate?.trim(), identity].filter(Boolean).join(' / ') || row.sourceEndpoint || '-';
@@ -237,6 +255,13 @@ export function Dashboard({
   const [locations, setLocations] = useState<VehicleRealtimeRow[]>([]);
   const [qualityIssues, setQualityIssues] = useState<QualityIssueRow[]>([]);
   const [opsHealth, setOpsHealth] = useState<OpsHealth | null>(null);
+  const [timeMonitorFilters, setTimeMonitorFilters] = useState<Record<string, string>>(() => {
+    const today = todayDateString();
+    return {
+      dateFrom: previousDateString(today),
+      dateTo: today
+    };
+  });
   const [loading, setLoading] = useState(true);
   const [coverageLoading, setCoverageLoading] = useState(false);
   const [coverageServiceStatusTitle, setCoverageServiceStatusTitle] = useState('');
@@ -655,6 +680,39 @@ export function Dashboard({
       ]
     }
   ];
+  const timeMonitorScope = (values = timeMonitorFilters) => {
+    const normalized: Record<string, string> = {};
+    for (const key of ['keyword', 'protocol', 'dateFrom', 'dateTo'] as const) {
+      const value = String(values[key] ?? '').trim();
+      if (value) {
+        normalized[key] = value;
+      }
+    }
+    return normalized;
+  };
+  const openTimeMonitorHistory = () => {
+    onOpenHistory(timeMonitorScope());
+  };
+  const openTimeMonitorMileage = () => {
+    onOpenMileage(timeMonitorScope());
+  };
+  const openTimeMonitorRaw = () => {
+    onOpenHistory({ ...timeMonitorScope(), tab: 'raw', includeFields: 'true' });
+  };
+  const openTimeMonitorAlerts = () => {
+    const scope = timeMonitorScope();
+    onOpenQuality({
+      ...(scope.keyword ? { keyword: scope.keyword } : {}),
+      ...(scope.protocol ? { protocol: scope.protocol } : {})
+    });
+  };
+  const timeMonitorSummary = (() => {
+    const scope = timeMonitorScope();
+    const vehicle = scope.keyword || '全部车辆';
+    const source = scope.protocol || '全部数据通道';
+    const range = scope.dateFrom || scope.dateTo ? `${scope.dateFrom || '-'} 至 ${scope.dateTo || '-'}` : '全部时间';
+    return `${vehicle} / ${source} / ${range}`;
+  })();
   const dataFlowStages = [
     {
       stage: '01',
@@ -1009,13 +1067,48 @@ export function Dashboard({
             <Button size="small" theme="light" type="primary" onClick={exportDashboardSnapshot}>导出驾驶舱 CSV</Button>
           </Space>
         </Card>
-        <Card bordered title="自定义时间监控" style={{ marginBottom: 16 }}>
+        <Card
+          bordered
+          title={<Space><span>自定义时间监控</span><Tag color="blue">{timeMonitorSummary}</Tag></Space>}
+          style={{ marginBottom: 16 }}
+        >
+          <Form
+            initValues={timeMonitorFilters}
+            layout="horizontal"
+            onSubmit={(values) => setTimeMonitorFilters(timeMonitorScope(values as Record<string, string>))}
+            style={{ marginBottom: 12 }}
+          >
+            <Form.Input field="keyword" label="车辆" placeholder="VIN / 车牌 / 手机号" style={{ width: 240 }} />
+            <Form.Select field="protocol" label="数据通道" placeholder="全部通道" style={{ width: 150 }}>
+              <Select.Option value="GB32960">GB32960</Select.Option>
+              <Select.Option value="JT808">JT808</Select.Option>
+              <Select.Option value="YUTONG_MQTT">YUTONG_MQTT</Select.Option>
+            </Form.Select>
+            <Form.Input field="dateFrom" label="开始日期" placeholder="2026-07-01" style={{ width: 150 }} />
+            <Form.Input field="dateTo" label="结束日期" placeholder="2026-07-05" style={{ width: 150 }} />
+            <Space>
+              <Button htmlType="submit" theme="solid" type="primary">应用时间窗</Button>
+              <Button onClick={() => {
+                const today = todayDateString();
+                setTimeMonitorFilters({ dateFrom: previousDateString(today), dateTo: today });
+              }}>重置最近一天</Button>
+            </Space>
+          </Form>
+          <div className="vp-time-monitor-actions">
+            <Button theme="solid" type="primary" onClick={openTimeMonitorHistory}>查看轨迹</Button>
+            <Button theme="light" type="primary" onClick={openTimeMonitorMileage}>统计里程</Button>
+            <Button theme="light" type="primary" onClick={openTimeMonitorRaw}>导出原始记录</Button>
+            <Button theme="light" type="warning" onClick={openTimeMonitorAlerts}>查看告警</Button>
+          </div>
+          <Typography.Text type="secondary">
+            同一时间窗会带入轨迹回放、里程统计和历史数据导出，避免跨页面重复输入。
+          </Typography.Text>
           <div className="vp-time-monitor-grid">
             {[
-              { title: '今天车辆轨迹', detail: '查看当天活跃车辆的轨迹、速度和里程断点。', action: '查今天', onClick: () => onOpenHistory() },
-              { title: '历史时间窗', detail: '按任意起止时间查询位置历史、原始记录和字段明细。', action: '自定义查询', onClick: () => onOpenHistory({ tab: 'raw', includeFields: 'true' }) },
-              { title: '区间里程', detail: '按车辆和时间范围核对区间里程、日统计和异常点。', action: '里程统计', onClick: () => onOpenMileage() },
-              { title: '告警复盘', detail: '按车辆或事件回放告警发生前后的轨迹和数据证据。', action: '告警事件', onClick: () => onOpenQuality() }
+              { title: '今天车辆轨迹', detail: '查看当天活跃车辆的轨迹、速度和里程断点。', action: '查今天', onClick: openTimeMonitorHistory },
+              { title: '历史时间窗', detail: '按任意起止时间查询位置历史、原始记录和字段明细。', action: '自定义查询', onClick: openTimeMonitorRaw },
+              { title: '区间里程', detail: '按车辆和时间范围核对区间里程、日统计和异常点。', action: '里程统计', onClick: openTimeMonitorMileage },
+              { title: '告警复盘', detail: '按车辆或事件回放告警发生前后的轨迹和数据证据。', action: '告警事件', onClick: openTimeMonitorAlerts }
             ].map((item) => (
               <button key={item.title} type="button" className="vp-time-monitor-item" onClick={item.onClick} aria-label={`时间监控 ${item.title}`}>
                 <div>
diff --git a/vehicle-data-platform/apps/web/src/styles/global.css b/vehicle-data-platform/apps/web/src/styles/global.css
index c8ce1135..6a7de42b 100644
--- a/vehicle-data-platform/apps/web/src/styles/global.css
+++ b/vehicle-data-platform/apps/web/src/styles/global.css
@@ -414,6 +414,16 @@ body {
   display: grid;
   grid-template-columns: repeat(4, minmax(0, 1fr));
   gap: 12px;
+  margin-top: 14px;
+}
+
+.vp-time-monitor-actions {
+  min-height: 36px;
+  margin-bottom: 8px;
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  flex-wrap: wrap;
 }
 
 .vp-time-monitor-item {
diff --git a/vehicle-data-platform/apps/web/src/test/App.test.tsx b/vehicle-data-platform/apps/web/src/test/App.test.tsx
index d9b09de6..0ca12aa2 100644
--- a/vehicle-data-platform/apps/web/src/test/App.test.tsx
+++ b/vehicle-data-platform/apps/web/src/test/App.test.tsx
@@ -792,6 +792,11 @@ test('dashboard exposes vehicle data center capability matrix', async () => {
   expect(screen.getByText('历史数据导出')).toBeInTheDocument();
   expect(screen.getByText('车辆服务入口')).toBeInTheDocument();
   expect(screen.getByText('自定义时间监控')).toBeInTheDocument();
+  expect(screen.getByText('应用时间窗')).toBeInTheDocument();
+  expect(screen.getByText('重置最近一天')).toBeInTheDocument();
+  expect(screen.getByText('查看轨迹')).toBeInTheDocument();
+  expect(screen.getByText('统计里程')).toBeInTheDocument();
+  expect(screen.getByText('导出原始记录')).toBeInTheDocument();
   expect(screen.getByText('今天车辆轨迹')).toBeInTheDocument();
   expect(screen.getByText('历史时间窗')).toBeInTheDocument();
   expect(screen.getByText('区间里程')).toBeInTheDocument();
@@ -856,10 +861,35 @@ test('dashboard exposes vehicle data center capability matrix', async () => {
   expect(new URLSearchParams(window.location.hash.split('?')[1] ?? '').get('includeFields')).toBe('true');
   cleanup();
 
+  await renderDashboard();
+  fireEvent.click(screen.getByRole('button', { name: '查看轨迹' }));
+  expect(window.location.hash.startsWith('#/history')).toBe(true);
+  expect(new URLSearchParams(window.location.hash.split('?')[1] ?? '').get('dateFrom')).toBeTruthy();
+  expect(new URLSearchParams(window.location.hash.split('?')[1] ?? '').get('dateTo')).toBeTruthy();
+  cleanup();
+
+  await renderDashboard();
+  fireEvent.click(screen.getByRole('button', { name: '统计里程' }));
+  expect(window.location.hash.startsWith('#/mileage')).toBe(true);
+  expect(new URLSearchParams(window.location.hash.split('?')[1] ?? '').get('dateFrom')).toBeTruthy();
+  expect(new URLSearchParams(window.location.hash.split('?')[1] ?? '').get('dateTo')).toBeTruthy();
+  cleanup();
+
+  await renderDashboard();
+  fireEvent.click(screen.getByRole('button', { name: '导出原始记录' }));
+  expect(window.location.hash.startsWith('#/history-query')).toBe(true);
+  expect(new URLSearchParams(window.location.hash.split('?')[1] ?? '').get('tab')).toBe('raw');
+  expect(new URLSearchParams(window.location.hash.split('?')[1] ?? '').get('includeFields')).toBe('true');
+  expect(new URLSearchParams(window.location.hash.split('?')[1] ?? '').get('dateFrom')).toBeTruthy();
+  expect(new URLSearchParams(window.location.hash.split('?')[1] ?? '').get('dateTo')).toBeTruthy();
+  cleanup();
+
   await renderDashboard();
   fireEvent.click(screen.getByRole('button', { name: '时间监控 历史时间窗' }));
   expect(window.location.hash.startsWith('#/history-query')).toBe(true);
   expect(new URLSearchParams(window.location.hash.split('?')[1] ?? '').get('includeFields')).toBe('true');
+  expect(new URLSearchParams(window.location.hash.split('?')[1] ?? '').get('dateFrom')).toBeTruthy();
+  expect(new URLSearchParams(window.location.hash.split('?')[1] ?? '').get('dateTo')).toBeTruthy();
   cleanup();
 
   await renderDashboard();