diff --git a/src/components/usage/hooks/useChartData.ts b/src/components/usage/hooks/useChartData.ts
index d7376cb..7805df3 100644
--- a/src/components/usage/hooks/useChartData.ts
+++ b/src/components/usage/hooks/useChartData.ts
@@ -9,6 +9,7 @@ export interface UseChartDataOptions {
   chartLines: string[];
   isDark: boolean;
   isMobile: boolean;
+  hourWindowHours?: number;
 }
 
 export interface UseChartDataReturn {
@@ -26,20 +27,21 @@ export function useChartData({
   usage,
   chartLines,
   isDark,
-  isMobile
+  isMobile,
+  hourWindowHours
 }: UseChartDataOptions): UseChartDataReturn {
   const [requestsPeriod, setRequestsPeriod] = useState<'hour' | 'day'>('day');
   const [tokensPeriod, setTokensPeriod] = useState<'hour' | 'day'>('day');
 
   const requestsChartData = useMemo(() => {
     if (!usage) return { labels: [], datasets: [] };
-    return buildChartData(usage, requestsPeriod, 'requests', chartLines);
-  }, [usage, requestsPeriod, chartLines]);
+    return buildChartData(usage, requestsPeriod, 'requests', chartLines, { hourWindowHours });
+  }, [usage, requestsPeriod, chartLines, hourWindowHours]);
 
   const tokensChartData = useMemo(() => {
     if (!usage) return { labels: [], datasets: [] };
-    return buildChartData(usage, tokensPeriod, 'tokens', chartLines);
-  }, [usage, tokensPeriod, chartLines]);
+    return buildChartData(usage, tokensPeriod, 'tokens', chartLines, { hourWindowHours });
+  }, [usage, tokensPeriod, chartLines, hourWindowHours]);
 
   const requestsChartOptions = useMemo(
     () =>
diff --git a/src/i18n/locales/en.json b/src/i18n/locales/en.json
index 558d1eb..ca64e53 100644
--- a/src/i18n/locales/en.json
+++ b/src/i18n/locales/en.json
@@ -750,6 +750,11 @@
     "api_details": "API Details",
     "by_hour": "By Hour",
     "by_day": "By Day",
+    "range_filter": "Time Range",
+    "range_all": "All Time",
+    "range_7h": "Last 7 Hours",
+    "range_24h": "Last 24 Hours",
+    "range_7d": "Last 7 Days",
     "refresh": "Refresh",
     "export": "Export",
     "import": "Import",
diff --git a/src/i18n/locales/ru.json b/src/i18n/locales/ru.json
index 1431682..700dd47 100644
--- a/src/i18n/locales/ru.json
+++ b/src/i18n/locales/ru.json
@@ -753,6 +753,11 @@
     "api_details": "Детали API",
     "by_hour": "По часам",
     "by_day": "По дням",
+    "range_filter": "Диапазон времени",
+    "range_all": "За всё время",
+    "range_7h": "Последние 7 часов",
+    "range_24h": "Последние 24 часа",
+    "range_7d": "Последние 7 дней",
     "refresh": "Обновить",
     "export": "Экспорт",
     "import": "Импорт",
diff --git a/src/i18n/locales/zh-CN.json b/src/i18n/locales/zh-CN.json
index b629bbb..3eee0e8 100644
--- a/src/i18n/locales/zh-CN.json
+++ b/src/i18n/locales/zh-CN.json
@@ -750,6 +750,11 @@
     "api_details": "API 详细统计",
     "by_hour": "按小时",
     "by_day": "按天",
+    "range_filter": "时间范围",
+    "range_all": "全部时间",
+    "range_7h": "最近7小时",
+    "range_24h": "最近24小时",
+    "range_7d": "最近7天",
     "refresh": "刷新",
     "export": "导出数据",
     "import": "导入数据",
diff --git a/src/pages/UsagePage.module.scss b/src/pages/UsagePage.module.scss
index bce9d85..062a923 100644
--- a/src/pages/UsagePage.module.scss
+++ b/src/pages/UsagePage.module.scss
@@ -25,6 +25,59 @@
   flex-wrap: wrap;
 }
 
+.timeRangeGroup {
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+  flex-wrap: wrap;
+}
+
+.timeRangeLabel {
+  font-size: 12px;
+  color: var(--text-secondary);
+  font-weight: 600;
+}
+
+.timeRangeSelectWrap {
+  position: relative;
+  display: inline-flex;
+  align-items: center;
+}
+
+.select.timeRangeSelect {
+  min-width: 164px;
+  height: 40px;
+  border-color: var(--border-color);
+  border-radius: $radius-md;
+  background-color: var(--bg-primary);
+  box-shadow: var(--shadow);
+  color: var(--text-primary);
+  font-size: 13px;
+  font-weight: 500;
+  padding-right: 34px;
+  appearance: none;
+  -webkit-appearance: none;
+  -moz-appearance: none;
+
+  &:hover {
+    border-color: var(--border-hover);
+  }
+
+  &:focus {
+    box-shadow: var(--shadow), 0 0 0 3px rgba(59, 130, 246, 0.15);
+  }
+}
+
+.timeRangeSelectIcon {
+  position: absolute;
+  right: 11px;
+  top: 50%;
+  transform: translateY(-50%);
+  display: inline-flex;
+  color: var(--text-secondary);
+  pointer-events: none;
+}
+
 .pageTitle {
   font-size: 28px;
   font-weight: 700;
diff --git a/src/pages/UsagePage.tsx b/src/pages/UsagePage.tsx
index 9207e7a..daf081a 100644
--- a/src/pages/UsagePage.tsx
+++ b/src/pages/UsagePage.tsx
@@ -13,6 +13,7 @@ import {
 } from 'chart.js';
 import { Button } from '@/components/ui/Button';
 import { LoadingSpinner } from '@/components/ui/LoadingSpinner';
+import { IconChevronDown } from '@/components/ui/icons';
 import { useMediaQuery } from '@/hooks/useMediaQuery';
 import { useHeaderRefresh } from '@/hooks/useHeaderRefresh';
 import { useThemeStore } from '@/stores';
@@ -27,7 +28,13 @@ import {
   useSparklines,
   useChartData
 } from '@/components/usage';
-import { getModelNamesFromUsage, getApiStats, getModelStats } from '@/utils/usage';
+import {
+  getModelNamesFromUsage,
+  getApiStats,
+  getModelStats,
+  filterUsageByTimeRange,
+  type UsageTimeRange
+} from '@/utils/usage';
 import styles from './UsagePage.module.scss';
 
 // Register Chart.js components
@@ -43,8 +50,18 @@ ChartJS.register(
 );
 
 const CHART_LINES_STORAGE_KEY = 'cli-proxy-usage-chart-lines-v1';
+const TIME_RANGE_STORAGE_KEY = 'cli-proxy-usage-time-range-v1';
 const DEFAULT_CHART_LINES = ['all'];
+const DEFAULT_TIME_RANGE: UsageTimeRange = '24h';
 const MAX_CHART_LINES = 9;
+const HOUR_WINDOW_BY_TIME_RANGE: Record<Exclude<UsageTimeRange, 'all'>, number> = {
+  '7h': 7,
+  '24h': 24,
+  '7d': 7 * 24
+};
+
+const isUsageTimeRange = (value: unknown): value is UsageTimeRange =>
+  value === '7h' || value === '24h' || value === '7d' || value === 'all';
 
 const normalizeChartLines = (value: unknown, maxLines = MAX_CHART_LINES): string[] => {
   if (!Array.isArray(value)) {
@@ -75,6 +92,18 @@ const loadChartLines = (): string[] => {
   }
 };
 
+const loadTimeRange = (): UsageTimeRange => {
+  try {
+    if (typeof localStorage === 'undefined') {
+      return DEFAULT_TIME_RANGE;
+    }
+    const raw = localStorage.getItem(TIME_RANGE_STORAGE_KEY);
+    return isUsageTimeRange(raw) ? raw : DEFAULT_TIME_RANGE;
+  } catch {
+    return DEFAULT_TIME_RANGE;
+  }
+};
+
 export function UsagePage() {
   const { t } = useTranslation();
   const isMobile = useMediaQuery('(max-width: 768px)');
@@ -101,6 +130,14 @@ export function UsagePage() {
 
   // Chart lines state
   const [chartLines, setChartLines] = useState<string[]>(loadChartLines);
+  const [timeRange, setTimeRange] = useState<UsageTimeRange>(loadTimeRange);
+
+  const filteredUsage = useMemo(
+    () => (usage ? filterUsageByTimeRange(usage, timeRange) : null),
+    [usage, timeRange]
+  );
+  const hourWindowHours =
+    timeRange === 'all' ? undefined : HOUR_WINDOW_BY_TIME_RANGE[timeRange];
 
   const handleChartLinesChange = useCallback((lines: string[]) => {
     setChartLines(normalizeChartLines(lines));
@@ -117,6 +154,17 @@ export function UsagePage() {
     }
   }, [chartLines]);
 
+  useEffect(() => {
+    try {
+      if (typeof localStorage === 'undefined') {
+        return;
+      }
+      localStorage.setItem(TIME_RANGE_STORAGE_KEY, timeRange);
+    } catch {
+      // Ignore storage errors.
+    }
+  }, [timeRange]);
+
   // Sparklines hook
   const {
     requestsSparkline,
@@ -124,7 +172,7 @@ export function UsagePage() {
     rpmSparkline,
     tpmSparkline,
     costSparkline
-  } = useSparklines({ usage, loading });
+  } = useSparklines({ usage: filteredUsage, loading });
 
   // Chart data hook
   const {
@@ -136,12 +184,18 @@ export function UsagePage() {
     tokensChartData,
     requestsChartOptions,
     tokensChartOptions
-  } = useChartData({ usage, chartLines, isDark, isMobile });
+  } = useChartData({ usage: filteredUsage, chartLines, isDark, isMobile, hourWindowHours });
 
   // Derived data
   const modelNames = useMemo(() => getModelNamesFromUsage(usage), [usage]);
-  const apiStats = useMemo(() => getApiStats(usage, modelPrices), [usage, modelPrices]);
-  const modelStats = useMemo(() => getModelStats(usage, modelPrices), [usage, modelPrices]);
+  const apiStats = useMemo(
+    () => getApiStats(filteredUsage, modelPrices),
+    [filteredUsage, modelPrices]
+  );
+  const modelStats = useMemo(
+    () => getModelStats(filteredUsage, modelPrices),
+    [filteredUsage, modelPrices]
+  );
   const hasPrices = Object.keys(modelPrices).length > 0;
 
   return (
@@ -158,6 +212,24 @@ export function UsagePage() {
       <div className={styles.header}>
         <h1 className={styles.pageTitle}>{t('usage_stats.title')}</h1>
         <div className={styles.headerActions}>
+          <div className={styles.timeRangeGroup}>
+            <span className={styles.timeRangeLabel}>{t('usage_stats.range_filter')}</span>
+            <div className={styles.timeRangeSelectWrap}>
+              <select
+                value={timeRange}
+                onChange={(event) => setTimeRange(event.target.value as UsageTimeRange)}
+                className={`${styles.select} ${styles.timeRangeSelect}`}
+              >
+                <option value="all">{t('usage_stats.range_all')}</option>
+                <option value="7h">{t('usage_stats.range_7h')}</option>
+                <option value="24h">{t('usage_stats.range_24h')}</option>
+                <option value="7d">{t('usage_stats.range_7d')}</option>
+              </select>
+              <span className={styles.timeRangeSelectIcon} aria-hidden="true">
+                <IconChevronDown size={14} />
+              </span>
+            </div>
+          </div>
           <Button
             variant="secondary"
             size="sm"
@@ -198,7 +270,7 @@ export function UsagePage() {
 
       {/* Stats Overview Cards */}
       <StatCards
-        usage={usage}
+        usage={filteredUsage}
         loading={loading}
         modelPrices={modelPrices}
         sparklines={{
diff --git a/src/utils/usage.ts b/src/utils/usage.ts
index 32888b1..70f5ee0 100644
--- a/src/utils/usage.ts
+++ b/src/utils/usage.ts
@@ -61,8 +61,15 @@ export interface ApiStats {
   models: Record<string, { requests: number; successCount: number; failureCount: number; tokens: number }>;
 }
 
+export type UsageTimeRange = '7h' | '24h' | '7d' | 'all';
+
 const TOKENS_PER_PRICE_UNIT = 1_000_000;
 const MODEL_PRICE_STORAGE_KEY = 'cli-proxy-model-prices-v2';
+const USAGE_TIME_RANGE_MS: Record<Exclude<UsageTimeRange, 'all'>, number> = {
+  '7h': 7 * 60 * 60 * 1000,
+  '24h': 24 * 60 * 60 * 1000,
+  '7d': 7 * 24 * 60 * 60 * 1000
+};
 
 const isRecord = (value: unknown): value is Record<string, unknown> =>
   value !== null && typeof value === 'object' && !Array.isArray(value);
@@ -73,6 +80,140 @@ const getApisRecord = (usageData: unknown): Record<string, unknown> | null => {
   return isRecord(apisRaw) ? apisRaw : null;
 };
 
+interface UsageSummary {
+  totalRequests: number;
+  successCount: number;
+  failureCount: number;
+  totalTokens: number;
+}
+
+const createUsageSummary = (): UsageSummary => ({
+  totalRequests: 0,
+  successCount: 0,
+  failureCount: 0,
+  totalTokens: 0
+});
+
+const toUsageSummaryFields = (summary: UsageSummary) => ({
+  total_requests: summary.totalRequests,
+  success_count: summary.successCount,
+  failure_count: summary.failureCount,
+  total_tokens: summary.totalTokens
+});
+
+const isDetailWithinWindow = (detail: unknown, windowStart: number, nowMs: number): detail is Record<string, unknown> => {
+  if (!isRecord(detail) || typeof detail.timestamp !== 'string') {
+    return false;
+  }
+  const timestamp = Date.parse(detail.timestamp);
+  if (Number.isNaN(timestamp)) {
+    return false;
+  }
+  return timestamp >= windowStart && timestamp <= nowMs;
+};
+
+const updateSummaryFromDetails = (summary: UsageSummary, details: unknown[]) => {
+  details.forEach((detail) => {
+    const detailRecord = isRecord(detail) ? detail : null;
+    if (!detailRecord) {
+      return;
+    }
+
+    summary.totalRequests += 1;
+    if (detailRecord.failed === true) {
+      summary.failureCount += 1;
+    } else {
+      summary.successCount += 1;
+    }
+    summary.totalTokens += extractTotalTokens(detailRecord);
+  });
+};
+
+export function filterUsageByTimeRange<T>(usageData: T, range: UsageTimeRange, nowMs: number = Date.now()): T {
+  if (range === 'all') {
+    return usageData;
+  }
+
+  const usageRecord = isRecord(usageData) ? usageData : null;
+  const apis = getApisRecord(usageData);
+  if (!usageRecord || !apis) {
+    return usageData;
+  }
+
+  const rangeMs = USAGE_TIME_RANGE_MS[range];
+  if (!Number.isFinite(rangeMs) || rangeMs <= 0) {
+    return usageData;
+  }
+
+  const windowStart = nowMs - rangeMs;
+  const filteredApis: Record<string, unknown> = {};
+  const totalSummary = createUsageSummary();
+
+  Object.entries(apis).forEach(([apiName, apiEntry]) => {
+    if (!isRecord(apiEntry)) {
+      return;
+    }
+
+    const models = isRecord(apiEntry.models) ? apiEntry.models : null;
+    if (!models) {
+      return;
+    }
+
+    const filteredModels: Record<string, unknown> = {};
+    const apiSummary = createUsageSummary();
+
+    Object.entries(models).forEach(([modelName, modelEntry]) => {
+      if (!isRecord(modelEntry)) {
+        return;
+      }
+
+      const detailsRaw = Array.isArray(modelEntry.details) ? modelEntry.details : [];
+      const filteredDetails = detailsRaw.filter((detail) =>
+        isDetailWithinWindow(detail, windowStart, nowMs)
+      );
+
+      if (!filteredDetails.length) {
+        return;
+      }
+
+      const modelSummary = createUsageSummary();
+      updateSummaryFromDetails(modelSummary, filteredDetails);
+
+      filteredModels[modelName] = {
+        ...modelEntry,
+        ...toUsageSummaryFields(modelSummary),
+        details: filteredDetails
+      };
+
+      apiSummary.totalRequests += modelSummary.totalRequests;
+      apiSummary.successCount += modelSummary.successCount;
+      apiSummary.failureCount += modelSummary.failureCount;
+      apiSummary.totalTokens += modelSummary.totalTokens;
+    });
+
+    if (Object.keys(filteredModels).length === 0) {
+      return;
+    }
+
+    filteredApis[apiName] = {
+      ...apiEntry,
+      ...toUsageSummaryFields(apiSummary),
+      models: filteredModels
+    };
+
+    totalSummary.totalRequests += apiSummary.totalRequests;
+    totalSummary.successCount += apiSummary.successCount;
+    totalSummary.failureCount += apiSummary.failureCount;
+    totalSummary.totalTokens += apiSummary.totalTokens;
+  });
+
+  return {
+    ...usageRecord,
+    ...toUsageSummaryFields(totalSummary),
+    apis: filteredApis
+  } as T;
+}
+
 const normalizeAuthIndex = (value: unknown) => {
   if (typeof value === 'number' && Number.isFinite(value)) {
     return value.toString();
@@ -735,23 +876,28 @@ export function formatDayLabel(date: Date): string {
  */
 export function buildHourlySeriesByModel(
   usageData: unknown,
-  metric: 'requests' | 'tokens' = 'requests'
+  metric: 'requests' | 'tokens' = 'requests',
+  hourWindow: number = 24
 ): {
   labels: string[];
   dataByModel: Map<string, number[]>;
   hasData: boolean;
 } {
   const hourMs = 60 * 60 * 1000;
+  const resolvedHourWindow =
+    Number.isFinite(hourWindow) && hourWindow > 0
+      ? Math.min(Math.max(Math.floor(hourWindow), 1), 24 * 31)
+      : 24;
   const now = new Date();
   const currentHour = new Date(now);
   currentHour.setMinutes(0, 0, 0);
 
   const earliestBucket = new Date(currentHour);
-  earliestBucket.setHours(earliestBucket.getHours() - 23);
+  earliestBucket.setHours(earliestBucket.getHours() - (resolvedHourWindow - 1));
   const earliestTime = earliestBucket.getTime();
 
   const labels: string[] = [];
-  for (let i = 0; i < 24; i++) {
+  for (let i = 0; i < resolvedHourWindow; i++) {
     const bucketStart = earliestTime + i * hourMs;
     labels.push(formatHourLabel(new Date(bucketStart)));
   }
@@ -927,10 +1073,11 @@ export function buildChartData(
   usageData: unknown,
   period: 'hour' | 'day' = 'day',
   metric: 'requests' | 'tokens' = 'requests',
-  selectedModels: string[] = []
+  selectedModels: string[] = [],
+  options: { hourWindowHours?: number } = {}
 ): ChartData {
   const baseSeries = period === 'hour'
-    ? buildHourlySeriesByModel(usageData, metric)
+    ? buildHourlySeriesByModel(usageData, metric, options.hourWindowHours)
     : buildDailySeriesByModel(usageData, metric);
 
   const { labels, dataByModel } = baseSeries;