diff --git a/stats/src/components/trends/DateRangeSelector.tsx b/stats/src/components/trends/DateRangeSelector.tsx
index 7d7352f3..c46c3979 100644
--- a/stats/src/components/trends/DateRangeSelector.tsx
+++ b/stats/src/components/trends/DateRangeSelector.tsx
@@ -53,7 +53,7 @@ export function DateRangeSelector({
     <div className="flex items-center gap-4 text-sm">
       <SegmentedControl
         label="Range"
-        options={['7d', '30d', '90d', 'all'] as TimeRange[]}
+        options={['7d', '30d', '90d', '365d', 'all'] as TimeRange[]}
         value={range}
         onChange={onRangeChange}
         formatLabel={(r) => (r === 'all' ? 'All' : r)}
diff --git a/stats/src/hooks/useTrends.ts b/stats/src/hooks/useTrends.ts
index 4f65a01c..907a2f28 100644
--- a/stats/src/hooks/useTrends.ts
+++ b/stats/src/hooks/useTrends.ts
@@ -2,7 +2,7 @@ import { useState, useEffect } from 'react';
 import { getStatsClient } from './useStatsApi';
 import type { TrendsDashboardData } from '../types/stats';
 
-export type TimeRange = '7d' | '30d' | '90d' | 'all';
+export type TimeRange = '7d' | '30d' | '90d' | '365d' | 'all';
 export type GroupBy = 'day' | 'month';
 
 export function useTrends(range: TimeRange, groupBy: GroupBy) {
diff --git a/stats/src/lib/api-client.test.ts b/stats/src/lib/api-client.test.ts
index 85c794ee..c26c15c2 100644
--- a/stats/src/lib/api-client.test.ts
+++ b/stats/src/lib/api-client.test.ts
@@ -115,6 +115,55 @@ test('getTrendsDashboard requests the chart-ready trends endpoint with range and
   }
 });
 
+test('getTrendsDashboard accepts 365d range and builds correct URL', async () => {
+  const originalFetch = globalThis.fetch;
+  let seenUrl = '';
+  globalThis.fetch = (async (input: RequestInfo | URL) => {
+    seenUrl = String(input);
+    return new Response(
+      JSON.stringify({
+        activity: { watchTime: [], cards: [], words: [], sessions: [] },
+        progress: {
+          watchTime: [],
+          sessions: [],
+          words: [],
+          newWords: [],
+          cards: [],
+          episodes: [],
+          lookups: [],
+        },
+        ratios: { lookupsPerHundred: [] },
+        animePerDay: {
+          episodes: [],
+          watchTime: [],
+          cards: [],
+          words: [],
+          lookups: [],
+          lookupsPerHundred: [],
+        },
+        animeCumulative: {
+          watchTime: [],
+          episodes: [],
+          cards: [],
+          words: [],
+        },
+        patterns: {
+          watchTimeByDayOfWeek: [],
+          watchTimeByHour: [],
+        },
+      }),
+      { status: 200, headers: { 'Content-Type': 'application/json' } },
+    );
+  }) as typeof globalThis.fetch;
+
+  try {
+    await apiClient.getTrendsDashboard('365d', 'day');
+    assert.equal(seenUrl, `${BASE_URL}/api/stats/trends/dashboard?range=365d&groupBy=day`);
+  } finally {
+    globalThis.fetch = originalFetch;
+  }
+});
+
 test('getSessionEvents can request only specific event types', async () => {
   const originalFetch = globalThis.fetch;
   let seenUrl = '';
diff --git a/stats/src/lib/api-client.ts b/stats/src/lib/api-client.ts
index e4576e21..083d05f4 100644
--- a/stats/src/lib/api-client.ts
+++ b/stats/src/lib/api-client.ts
@@ -116,7 +116,7 @@ export const apiClient = {
     fetchJson<NewAnimePerDay[]>(`/api/stats/trends/new-anime-per-day?limit=${limit}`),
   getWatchTimePerAnime: (limit = 90) =>
     fetchJson<WatchTimePerAnime[]>(`/api/stats/trends/watch-time-per-anime?limit=${limit}`),
-  getTrendsDashboard: (range: '7d' | '30d' | '90d' | 'all', groupBy: 'day' | 'month') =>
+  getTrendsDashboard: (range: '7d' | '30d' | '90d' | '365d' | 'all', groupBy: 'day' | 'month') =>
     fetchJson<TrendsDashboardData>(
       `/api/stats/trends/dashboard?range=${encodeURIComponent(range)}&groupBy=${encodeURIComponent(groupBy)}`,
     ),