diff --git a/devfront/src/features/overview/GlobalOverviewPage.tsx b/devfront/src/features/overview/GlobalOverviewPage.tsx
index f60c244d..4ab57bc1 100644
--- a/devfront/src/features/overview/GlobalOverviewPage.tsx
+++ b/devfront/src/features/overview/GlobalOverviewPage.tsx
@@ -18,7 +18,6 @@ import {
   OverviewMetric,
   OverviewSelectionChips,
 } from "../../../../common/core/components/overview";
-import { formatAuditDateParts } from "../../../../common/core/audit";
 import { DeveloperAccessRequestCard } from "../../components/common/DeveloperAccessRequestCard";
 import { Badge } from "../../components/ui/badge";
 import { Button } from "../../components/ui/button";
@@ -81,6 +80,7 @@ type UsageChartPalette = {
 };
 
 const deletedRecentChangeFilterId = "__deleted_recent_clients__";
+const localeStorageKey = "locale";
 
 type RecentChangePoint = {
   date: string;
@@ -102,6 +102,73 @@ type RecentChangeSeries = {
   points: RecentChangePoint[];
 };
 
+type AppLocale = "ko" | "en";
+
+function resolveAppLocale(): AppLocale {
+  if (typeof window === "undefined") {
+    return "ko";
+  }
+
+  const stored = window.localStorage.getItem(localeStorageKey);
+  if (stored === "ko" || stored === "en") {
+    return stored;
+  }
+
+  const pathLocale = window.location.pathname.split("/")[1];
+  if (pathLocale === "ko" || pathLocale === "en") {
+    return pathLocale;
+  }
+
+  return window.navigator.language.toLowerCase().startsWith("ko")
+    ? "ko"
+    : "en";
+}
+
+function formatRecentChangeTimestamp(value: string) {
+  if (!value) {
+    return { date: "-", time: "-" };
+  }
+
+  const parsed = new Date(value);
+  if (Number.isNaN(parsed.getTime())) {
+    return { date: value, time: "-" };
+  }
+
+  const locale = resolveAppLocale();
+  if (locale === "ko") {
+    const date = parsed.toISOString().slice(0, 10);
+    const timeParts = new Intl.DateTimeFormat("ko-KR", {
+      hour12: false,
+      hour: "2-digit",
+      minute: "2-digit",
+      second: "2-digit",
+    }).formatToParts(parsed);
+    const hour = timeParts.find((part) => part.type === "hour")?.value ?? "00";
+    const minute =
+      timeParts.find((part) => part.type === "minute")?.value ?? "00";
+    const second =
+      timeParts.find((part) => part.type === "second")?.value ?? "00";
+
+    return {
+      date,
+      time: `${hour}시 ${minute}분 ${second}초`,
+    };
+  }
+
+  return {
+    date: new Intl.DateTimeFormat("en-US", {
+      year: "numeric",
+      month: "short",
+      day: "numeric",
+    }).format(parsed),
+    time: new Intl.DateTimeFormat("en-US", {
+      hour: "numeric",
+      minute: "2-digit",
+      second: "2-digit",
+    }).format(parsed),
+  };
+}
+
 const usageChartPalettes: UsageChartPalette[] = [
   { bar: "#7dd3fc", line: "#10b981", point: "#059669" },
   { bar: "#f9a8d4", line: "#f97316", point: "#ea580c" },
@@ -1068,7 +1135,7 @@ function GlobalOverviewPage() {
           id: deletedRecentChangeFilterId,
           label: t(
             "ui.dev.dashboard.recent_changes.deleted_group",
-            "삭제된 RP",
+            "삭제된 앱",
           ),
         },
       ];
@@ -1399,9 +1466,9 @@ function GlobalOverviewPage() {
           <OverviewMetric
             icon={<Layers3 size={14} />}
             label={t(
-              "ui.dev.dashboard.recent_changes.summary.deleted_clients",
-              "삭제된 RP 수",
-            )}
+            "ui.dev.dashboard.recent_changes.summary.deleted_clients",
+            "삭제된 앱 수",
+          )}
             value={deletedRecentChangedClientCount.toLocaleString()}
           />
           <OverviewMetric
@@ -1466,7 +1533,8 @@ function GlobalOverviewPage() {
                 </div>
               ) : (
                 visibleRecentClientChanges.map((item) => {
-                  const { date, time } = formatAuditDateParts(item.timestamp);
+                  const { date, time } =
+                    formatRecentChangeTimestamp(item.timestamp);
                   return (
                     <div
                       key={item.eventId}
diff --git a/devfront/src/features/overview/recentClientChanges.ts b/devfront/src/features/overview/recentClientChanges.ts
index dd31e081..6284f58d 100644
--- a/devfront/src/features/overview/recentClientChanges.ts
+++ b/devfront/src/features/overview/recentClientChanges.ts
@@ -5,6 +5,7 @@ import {
   type AuditDetails,
   type CommonAuditLog,
 } from "../../../../common/core/audit";
+import { t } from "../../lib/i18n";
 import type { ClientSummary, DevAuditLog } from "../../lib/devApi";
 
 export type RecentClientChange = {
@@ -28,27 +29,6 @@ const recentClientActions = new Set([
   "DELETE_CLIENT",
 ]);
 
-const recentClientFieldLabels: Record<string, string> = {
-  name: "이름",
-  type: "유형",
-  status: "상태",
-  scopes: "스코프",
-  tenant_access_restricted: "테넌트 접근 제한",
-  allowed_tenants: "허용 테넌트",
-  id_token_claims: "커스텀 클레임",
-  token_endpoint_auth_method: "인증 방식",
-  jwks_uri: "JWKS URI",
-  backchannel_logout_uri: "Backchannel Logout URI",
-  backchannel_logout_session_required: "세션 필수",
-  headless_login_enabled: "헤드리스 로그인",
-  headless_token_endpoint_auth_method: "헤드리스 인증 방식",
-  headless_jwks_uri: "헤드리스 JWKS URI",
-  redirect_uri_count: "Redirect URI 수",
-  scope_count: "Scope 수",
-  relation: "관계",
-  subject: "대상",
-};
-
 function isRecord(value: unknown): value is Record<string, unknown> {
   return Boolean(value) && typeof value === "object" && !Array.isArray(value);
 }
@@ -56,24 +36,43 @@ function isRecord(value: unknown): value is Record<string, unknown> {
 export function getRecentClientActionLabel(action: string) {
   switch (action) {
     case "CREATE_CLIENT":
-      return "클라이언트 생성";
+      return t("ui.dev.clients.recent_changes.guide.create", "앱 생성");
     case "UPDATE_CLIENT":
-      return "설정 변경";
+      return t("ui.dev.clients.recent_changes.guide.settings", "설정 변경");
     case "UPDATE_CLIENT_STATUS":
-      return "상태 변경";
+      return t("ui.dev.clients.recent_changes.guide.status", "상태 변경");
     case "ROTATE_SECRET":
-      return "클라이언트 시크릿 재발급";
+      return t(
+        "ui.dev.clients.recent_changes.guide.secret",
+        "클라이언트 시크릿 재발급",
+      );
     case "ADD_RELATION":
-      return "관계 추가";
+      return t("ui.dev.clients.relationships.add_title", "관계 추가");
     case "REMOVE_RELATION":
-      return "관계 삭제";
+      return t("ui.common.remove", "Remove");
     case "DELETE_CLIENT":
-      return "클라이언트 삭제";
+      return t("ui.dev.clients.recent_changes.guide.delete", "앱 삭제");
     default:
       return action;
   }
 }
 
+function getRecentClientFieldLabel(key: string) {
+  switch (key) {
+    case "relation":
+      return t("ui.dev.clients.relationships.relation", "관계");
+    case "subject":
+      return t("ui.dev.clients.relationships.subject", "대상");
+    case "client_secret":
+      return t(
+        "ui.dev.clients.details.credentials.client_secret",
+        "클라이언트 시크릿",
+      );
+    default:
+      return key;
+  }
+}
+
 export function buildRecentClientChangeDetails(
   action: string,
   details: AuditDetails,
@@ -82,17 +81,32 @@ export function buildRecentClientChangeDetails(
   const after = isRecord(details.after) ? details.after : {};
 
   if (action === "ROTATE_SECRET") {
-    return [{ label: "클라이언트 시크릿", value: "재발급" }];
+    return [
+      {
+        label: getRecentClientFieldLabel("client_secret"),
+        value: t("msg.dev.clients.secret_rotated", "재발급"),
+      },
+    ];
   }
 
   if (action === "ADD_RELATION" || action === "REMOVE_RELATION") {
     const source = action === "ADD_RELATION" ? after : before;
     return [
       ...(source.relation
-        ? [{ label: "관계", value: formatAuditValue(source.relation) }]
+        ? [
+            {
+              label: getRecentClientFieldLabel("relation"),
+              value: formatAuditValue(source.relation),
+            },
+          ]
         : []),
       ...(source.subject
-        ? [{ label: "대상", value: formatAuditValue(source.subject) }]
+        ? [
+            {
+              label: getRecentClientFieldLabel("subject"),
+              value: formatAuditValue(source.subject),
+            },
+          ]
         : []),
     ];
   }
@@ -112,7 +126,7 @@ export function buildRecentClientChangeDetails(
         }
       }
 
-      const label = recentClientFieldLabels[key] ?? key;
+      const label = getRecentClientFieldLabel(key);
       if (action === "CREATE_CLIENT") {
         if (afterValue === undefined) {
           return null;
diff --git a/devfront/src/locales/en.toml b/devfront/src/locales/en.toml
index b41f378e..460fb853 100644
--- a/devfront/src/locales/en.toml
+++ b/devfront/src/locales/en.toml
@@ -1746,7 +1746,7 @@ title = "Quick links"
 title = "My Applications"
 
 [ui.dev.dashboard.recent_changes]
-deleted_group = "Deleted RPs"
+deleted_group = "Deleted applications"
 aria = "Recent application changes"
 period = "Recent change aggregation period"
 series = "Changes {{changes}} / Actors {{actors}}"
@@ -1755,7 +1755,7 @@ y_axis = "Y axis: change count"
 
 [ui.dev.dashboard.recent_changes.summary]
 changed_clients = "Changed apps"
-deleted_clients = "Deleted RPs"
+deleted_clients = "Deleted applications"
 latest_change = "Latest change"
 total_changes = "Recent changes"
 
diff --git a/devfront/src/locales/ko.toml b/devfront/src/locales/ko.toml
index d169bd38..444c776e 100644
--- a/devfront/src/locales/ko.toml
+++ b/devfront/src/locales/ko.toml
@@ -1745,7 +1745,7 @@ title = "빠른 이동"
 title = "내 애플리케이션"
 
 [ui.dev.dashboard.recent_changes]
-deleted_group = "삭제된 RP"
+deleted_group = "삭제된 앱"
 aria = "최근 변경된 앱 현황"
 period = "최근 변경 집계 단위"
 series = "변경 {{changes}} / 작업자 {{actors}}"
@@ -1754,7 +1754,7 @@ y_axis = "Y축: 변경 수"
 
 [ui.dev.dashboard.recent_changes.summary]
 changed_clients = "변경된 앱 수"
-deleted_clients = "삭제된 RP 수"
+deleted_clients = "삭제된 앱 수"
 latest_change = "마지막 변경일"
 total_changes = "최근 변경 건수"
 
diff --git a/locales/en.toml b/locales/en.toml
index 7bd5e3cf..48d6f898 100644
--- a/locales/en.toml
+++ b/locales/en.toml
@@ -2314,7 +2314,7 @@ title = "My Applications"
 
 [ui.dev.dashboard.recent_changes]
 aria = "Recent changed application status"
-deleted_group = "Deleted RPs"
+deleted_group = "Deleted applications"
 period = "Recent change aggregation period"
 series = "Changes {{changes}} / Actors {{actors}}"
 title = "Recent Changed Apps"
@@ -2322,7 +2322,7 @@ y_axis = "Y axis: change count"
 
 [ui.dev.dashboard.recent_changes.summary]
 changed_clients = "Changed applications"
-deleted_clients = "Deleted RPs"
+deleted_clients = "Deleted applications"
 latest_change = "Latest change"
 total_changes = "Recent change count"
 
diff --git a/locales/ko.toml b/locales/ko.toml
index 1f99c3d7..cf67c4ea 100644
--- a/locales/ko.toml
+++ b/locales/ko.toml
@@ -2778,7 +2778,7 @@ title = "내 애플리케이션"
 
 [ui.dev.dashboard.recent_changes]
 aria = "최근 변경된 앱 현황"
-deleted_group = "삭제된 RP"
+deleted_group = "삭제된 앱"
 period = "최근 변경 집계 단위"
 series = "변경 {{changes}} / 작업자 {{actors}}"
 title = "최근 변경된 앱"
@@ -2786,7 +2786,7 @@ y_axis = "Y축: 변경 수"
 
 [ui.dev.dashboard.recent_changes.summary]
 changed_clients = "변경된 앱 수"
-deleted_clients = "삭제된 RP 수"
+deleted_clients = "삭제된 앱 수"
 latest_change = "마지막 변경일"
 total_changes = "최근 변경 건수"