diff --git a/.claude/settings.local.json b/.claude/settings.local.json
index 6d020bd..3c153bc 100644
--- a/.claude/settings.local.json
+++ b/.claude/settings.local.json
@@ -18,7 +18,9 @@
       "Bash(fish -c \"which node\")",
       "Read(//opt/**)",
       "Bash(/home/anthony/.config/JetBrains/WebStorm2026.1/node/versions/24.14.1/bin/node node_modules/.bin/tsc --noEmit)",
-      "Bash(chmod +x /home/anthony/Documents/Projects/Tradarr/build-push.sh)"
+      "Bash(chmod +x /home/anthony/Documents/Projects/Tradarr/build-push.sh)",
+      "Bash(fish -c \"npm install react-markdown\")",
+      "Bash(fish -c \"which npm; which pnpm; which bun\")"
     ]
   }
 }
diff --git a/backend/internal/ai/pipeline.go b/backend/internal/ai/pipeline.go
index fe0b000..15bcb5b 100644
--- a/backend/internal/ai/pipeline.go
+++ b/backend/internal/ai/pipeline.go
@@ -116,10 +116,12 @@ func (p *Pipeline) GenerateForUser(ctx context.Context, userID string) (*models.
 		systemPrompt = DefaultSystemPrompt
 	}
 
+	tz, _ := p.repo.GetSetting("timezone")
+
 	// Passe 2 : résumé complet
 	fmt.Printf("[pipeline] Passe 2 — résumé : génération sur %d articles…\n", len(articles))
 	t2 := time.Now()
-	prompt := buildPrompt(systemPrompt, symbols, articles)
+	prompt := buildPrompt(systemPrompt, symbols, articles, tz)
 	summary, err := provider.Summarize(ctx, prompt)
 	if err != nil {
 		return nil, fmt.Errorf("AI summarize: %w", err)
@@ -266,7 +268,7 @@ func (p *Pipeline) callProviderForReport(ctx context.Context, excerpt, question
 	return provider.Summarize(ctx, prompt)
 }
 
-func buildPrompt(systemPrompt string, symbols []string, articles []models.Article) string {
+func buildPrompt(systemPrompt string, symbols []string, articles []models.Article, tz string) string {
 	var sb strings.Builder
 	sb.WriteString(systemPrompt)
 	sb.WriteString("\n\n")
@@ -275,7 +277,11 @@ func buildPrompt(systemPrompt string, symbols []string, articles []models.Articl
 		sb.WriteString(strings.Join(symbols, ", "))
 		sb.WriteString(".\n\n")
 	}
-	sb.WriteString(fmt.Sprintf("Date d'analyse : %s\n\n", time.Now().Format("02/01/2006 15:04")))
+	loc, err := time.LoadLocation(tz)
+	if err != nil || tz == "" {
+		loc = time.UTC
+	}
+	sb.WriteString(fmt.Sprintf("Date d'analyse : %s\n\n", time.Now().In(loc).Format("02/01/2006 15:04")))
 	sb.WriteString("/think\n\n")
 	sb.WriteString("## Actualités\n\n")
 
diff --git a/backend/internal/database/migrations/000007_timezone.down.sql b/backend/internal/database/migrations/000007_timezone.down.sql
new file mode 100644
index 0000000..2de0254
--- /dev/null
+++ b/backend/internal/database/migrations/000007_timezone.down.sql
@@ -0,0 +1 @@
+DELETE FROM settings WHERE key = 'timezone';
diff --git a/backend/internal/database/migrations/000007_timezone.up.sql b/backend/internal/database/migrations/000007_timezone.up.sql
new file mode 100644
index 0000000..8c5347e
--- /dev/null
+++ b/backend/internal/database/migrations/000007_timezone.up.sql
@@ -0,0 +1,2 @@
+INSERT INTO settings (key, value) VALUES ('timezone', 'Europe/Paris')
+ON CONFLICT (key) DO NOTHING;
diff --git a/backend/internal/scheduler/scheduler.go b/backend/internal/scheduler/scheduler.go
index eee6077..50b3adf 100644
--- a/backend/internal/scheduler/scheduler.go
+++ b/backend/internal/scheduler/scheduler.go
@@ -57,9 +57,14 @@ func (s *Scheduler) loadSchedule() error {
 		return nil
 	}
 
+	tz, _ := s.repo.GetSetting("timezone")
+	if tz == "" {
+		tz = "UTC"
+	}
+
 	for _, slot := range slots {
-		// Format cron: "minute hour * * day_of_week"
-		spec := fmt.Sprintf("%d %d * * %d", slot.Minute, slot.Hour, slot.DayOfWeek)
+		// TZ= prefix permet à robfig/cron d'interpréter les heures dans le fuseau configuré
+		spec := fmt.Sprintf("TZ=%s %d %d * * %d", tz, slot.Minute, slot.Hour, slot.DayOfWeek)
 		id, err := s.cron.AddFunc(spec, s.run)
 		if err != nil {
 			fmt.Printf("scheduler: invalid cron spec %q: %v\n", spec, err)
@@ -68,7 +73,7 @@ func (s *Scheduler) loadSchedule() error {
 		s.entryIDs = append(s.entryIDs, id)
 	}
 
-	fmt.Printf("scheduler: %d time slots loaded\n", len(s.entryIDs))
+	fmt.Printf("scheduler: %d time slots loaded (timezone: %s)\n", len(s.entryIDs), tz)
 	return nil
 }
 
diff --git a/frontend/src/pages/Dashboard.tsx b/frontend/src/pages/Dashboard.tsx
index f612114..7185b80 100644
--- a/frontend/src/pages/Dashboard.tsx
+++ b/frontend/src/pages/Dashboard.tsx
@@ -126,17 +126,28 @@ function ContextPanel({
 
 // ── Summary content renderer ────────────────────────────────────────────────
 
+function renderInline(text: string): React.ReactNode {
+  const parts = text.split(/(\*\*[^*]+\*\*)/g)
+  return parts.map((part, i) =>
+    part.startsWith('**') && part.endsWith('**')
+      ? <strong key={i}>{part.slice(2, -2)}</strong>
+      : part
+  )
+}
+
 function SummaryContent({ content }: { content: string }) {
   const lines = content.split('\n')
   return (
-    <div className="space-y-2 text-sm leading-relaxed select-text">
+    <div className="space-y-1 text-sm leading-relaxed select-text">
       {lines.map((line, i) => {
-        if (line.startsWith('## ')) return <h2 key={i} className="text-base font-semibold mt-4 first:mt-0">{line.slice(3)}</h2>
-        if (line.startsWith('### ')) return <h3 key={i} className="font-medium mt-3">{line.slice(4)}</h3>
-        if (line.startsWith('- ')) return <li key={i} className="ml-4 text-muted-foreground">{line.slice(2)}</li>
-        if (line.startsWith('**') && line.endsWith('**')) return <p key={i} className="font-semibold">{line.slice(2, -2)}</p>
-        if (line.trim() === '') return <div key={i} className="h-1" />
-        return <p key={i} className="text-muted-foreground">{line}</p>
+        if (line.startsWith('##### ')) return <h5 key={i} className="text-xs font-semibold uppercase tracking-wide text-muted-foreground mt-3">{renderInline(line.slice(6))}</h5>
+        if (line.startsWith('#### ')) return <h4 key={i} className="text-sm font-semibold mt-3">{renderInline(line.slice(5))}</h4>
+        if (line.startsWith('### ')) return <h3 key={i} className="text-sm font-semibold text-primary mt-4">{renderInline(line.slice(4))}</h3>
+        if (line.startsWith('## ')) return <h2 key={i} className="text-base font-bold mt-5 first:mt-0 border-b pb-1">{renderInline(line.slice(3))}</h2>
+        if (line.startsWith('# ')) return <h1 key={i} className="text-lg font-bold mt-5 first:mt-0">{renderInline(line.slice(2))}</h1>
+        if (line.startsWith('- ') || line.startsWith('* ')) return <li key={i} className="ml-4 text-muted-foreground list-disc">{renderInline(line.slice(2))}</li>
+        if (line.trim() === '') return <div key={i} className="h-2" />
+        return <p key={i} className="text-muted-foreground">{renderInline(line)}</p>
       })}
     </div>
   )
diff --git a/frontend/src/pages/admin/AdminSettings.tsx b/frontend/src/pages/admin/AdminSettings.tsx
index e6c8977..2053c1d 100644
--- a/frontend/src/pages/admin/AdminSettings.tsx
+++ b/frontend/src/pages/admin/AdminSettings.tsx
@@ -8,19 +8,26 @@ import { Label } from '@/components/ui/label'
 import { Spinner } from '@/components/ui/spinner'
 
 const NUMERIC_SETTINGS: Record<string, { label: string; description: string }> = {
-  scrape_interval_minutes: { label: 'Intervalle de scraping (minutes)', description: 'Fréquence de récupération des actualités' },
-  articles_lookback_hours: { label: 'Fenêtre d\'analyse (heures)', description: 'Période couverte pour les résumés IA' },
   summary_max_articles: { label: 'Articles max par résumé', description: 'Nombre maximum d\'articles envoyés à l\'IA' },
 }
 
+const COMMON_TIMEZONES = [
+  'Europe/Paris', 'Europe/London', 'Europe/Berlin', 'Europe/Madrid', 'Europe/Rome',
+  'America/New_York', 'America/Chicago', 'America/Los_Angeles',
+  'Asia/Tokyo', 'Asia/Hong_Kong', 'Asia/Singapore',
+  'UTC',
+]
+
 export function AdminSettings() {
   const [settings, setSettings] = useState<Setting[]>([])
   const [loading, setLoading] = useState(true)
   const [values, setValues] = useState<Record<string, string>>({})
   const [defaultPrompt, setDefaultPrompt] = useState('')
   const [saving, setSaving] = useState(false)
+  const [savingTz, setSavingTz] = useState(false)
   const [savingPrompt, setSavingPrompt] = useState(false)
   const [saved, setSaved] = useState(false)
+  const [savedTz, setSavedTz] = useState(false)
   const [savedPrompt, setSavedPrompt] = useState(false)
 
   useEffect(() => { load() }, [])
@@ -53,6 +60,13 @@ export function AdminSettings() {
     setTimeout(() => setSaved(false), 2000)
   }
 
+  async function saveTimezone() {
+    setSavingTz(true); setSavedTz(false)
+    await adminApi.updateSettings([{ key: 'timezone', value: values['timezone'] ?? 'Europe/Paris' }])
+    setSavingTz(false); setSavedTz(true)
+    setTimeout(() => setSavedTz(false), 2000)
+  }
+
   async function savePrompt() {
     setSavingPrompt(true); setSavedPrompt(false)
     await adminApi.updateSettings([{ key: 'ai_system_prompt', value: values['ai_system_prompt'] ?? '' }])
@@ -75,6 +89,35 @@ export function AdminSettings() {
         <p className="text-muted-foreground text-sm">Configuration globale du service</p>
       </div>
 
+      {/* Fuseau horaire */}
+      <Card>
+        <CardHeader><CardTitle>Fuseau horaire</CardTitle></CardHeader>
+        <CardContent className="space-y-4">
+          <div className="space-y-1">
+            <Label>Timezone (IANA)</Label>
+            <p className="text-xs text-muted-foreground">
+              Utilisé pour le planning de scraping et l'horodatage des résumés
+            </p>
+            <div className="flex gap-2 max-w-sm">
+              <Input
+                list="tz-list"
+                value={values['timezone'] ?? 'Europe/Paris'}
+                onChange={e => setValues(v => ({ ...v, timezone: e.target.value }))}
+                placeholder="Europe/Paris"
+              />
+              <datalist id="tz-list">
+                {COMMON_TIMEZONES.map(tz => <option key={tz} value={tz} />)}
+              </datalist>
+            </div>
+          </div>
+          <Button onClick={saveTimezone} disabled={savingTz}>
+            {savingTz ? <Spinner className="h-4 w-4" /> : <Save className="h-4 w-4" />}
+            {savedTz ? 'Enregistré !' : 'Enregistrer'}
+          </Button>
+        </CardContent>
+      </Card>
+
+      {/* Paramètres généraux */}
       <Card>
         <CardHeader><CardTitle>Paramètres généraux</CardTitle></CardHeader>
         <CardContent className="space-y-6">
@@ -101,6 +144,7 @@ export function AdminSettings() {
         </CardContent>
       </Card>
 
+      {/* Contexte IA */}
       <Card>
         <CardHeader>
           <CardTitle>Contexte IA</CardTitle>