diff --git a/packages/eagle/src/core/ConfigProvider/index.tsx b/packages/eagle/src/core/ConfigProvider/index.tsx
index 7cfecd0da..ae5662eb0 100644
--- a/packages/eagle/src/core/ConfigProvider/index.tsx
+++ b/packages/eagle/src/core/ConfigProvider/index.tsx
@@ -5,6 +5,7 @@ import "moment/locale/zh-cn";
 
 import { ParrotLngs } from "@cloudtower/parrot";
 import { useAntdPatchEnLocales } from "@src/hooks/useAntdPatchEnLocales";
+import { useAntdPatchJaLocales } from "@src/hooks/useAntdPatchJaLocales";
 import useParrotTranslation from "@src/hooks/useParrotTranslation";
 import { ConfigProvider as Antd4ConfigProvider } from "antd";
 import { ConfigProviderProps } from "antd/lib/config-provider";
@@ -63,16 +64,18 @@ export const ConfigProvider: React.FC<React.PropsWithChildren<ConfigProps>> = ({
   }, [i18n]);
 
   const patchEnLocale = useAntdPatchEnLocales(enUS);
+  const patchAntd4JaLocale = useAntdPatchJaLocales(jaJP);
+  const patchAntd5JaLocale = useAntdPatchJaLocales(antd5jaJP);
   const lng = i18n.language as ParrotLngs;
   const antd5Locales = {
     [ParrotLngs.zh]: antd5zhCN,
     [ParrotLngs.en]: antd5enUS,
-    [ParrotLngs.ja]: antd5jaJP,
+    [ParrotLngs.ja]: patchAntd5JaLocale,
   };
   const antd4Locales = {
     [ParrotLngs.zh]: zhCN,
     [ParrotLngs.en]: patchEnLocale,
-    [ParrotLngs.ja]: jaJP,
+    [ParrotLngs.ja]: patchAntd4JaLocale,
   };
   return (
     <ConfigProviderContext.Provider value={config}>
diff --git a/packages/eagle/src/hooks/__tests__/useAntdPatchJaLocales.test.ts b/packages/eagle/src/hooks/__tests__/useAntdPatchJaLocales.test.ts
new file mode 100644
index 000000000..31f2c8a16
--- /dev/null
+++ b/packages/eagle/src/hooks/__tests__/useAntdPatchJaLocales.test.ts
@@ -0,0 +1,34 @@
+import antd4JaJP from "antd/lib/locale/ja_JP";
+import antd5JaJP from "antd5/lib/locale/ja_JP";
+import { describe, expect, it } from "vitest";
+
+import { patchJaDatePickerLocale } from "../useAntdPatchJaLocales";
+
+type PatchedLocale = {
+  DatePicker?: { lang: { rangePlaceholder?: string[]; ok?: string } };
+  Calendar?: { lang: { ok?: string } };
+};
+
+describe("patchJaDatePickerLocale", () => {
+  it("updates Japanese date range picker copy for antd4", () => {
+    const locale = patchJaDatePickerLocale(antd4JaJP) as PatchedLocale;
+
+    expect(locale.DatePicker?.lang.rangePlaceholder).toEqual([
+      "開始時刻",
+      "終了時刻",
+    ]);
+    expect(locale.DatePicker?.lang.ok).toBe("OK");
+    expect(locale.Calendar?.lang.ok).toBe("OK");
+  });
+
+  it("updates Japanese date range picker copy for antd5", () => {
+    const locale = patchJaDatePickerLocale(antd5JaJP) as PatchedLocale;
+
+    expect(locale.DatePicker?.lang.rangePlaceholder).toEqual([
+      "開始時刻",
+      "終了時刻",
+    ]);
+    expect(locale.DatePicker?.lang.ok).toBe("OK");
+    expect(locale.Calendar?.lang.ok).toBe("OK");
+  });
+});
diff --git a/packages/eagle/src/hooks/useAntdPatchJaLocales.ts b/packages/eagle/src/hooks/useAntdPatchJaLocales.ts
new file mode 100644
index 000000000..af7a6b3ae
--- /dev/null
+++ b/packages/eagle/src/hooks/useAntdPatchJaLocales.ts
@@ -0,0 +1,24 @@
+import merge from "lodash/merge";
+import { useMemo } from "react";
+
+const PatchJaDatePickerLocale = {
+  DatePicker: {
+    lang: {
+      rangePlaceholder: ["開始時刻", "終了時刻"],
+      ok: "OK",
+    },
+  },
+  Calendar: {
+    lang: {
+      rangePlaceholder: ["開始時刻", "終了時刻"],
+      ok: "OK",
+    },
+  },
+};
+
+export const patchJaDatePickerLocale = <T,>(jaLocale: T): T =>
+  merge({}, jaLocale, PatchJaDatePickerLocale);
+
+export const useAntdPatchJaLocales = <T,>(jaLocale: T) => {
+  return useMemo(() => patchJaDatePickerLocale(jaLocale), [jaLocale]);
+};