diff --git a/test/ui.presenter-next-run.test.ts b/test/ui.presenter-next-run.test.ts
index 12c2ed4d80d..363cfcdc7b6 100644
--- a/test/ui.presenter-next-run.test.ts
+++ b/test/ui.presenter-next-run.test.ts
@@ -1,16 +1,18 @@
 import { describe, expect, it } from "vitest";
+import { t } from "../ui/src/i18n/index.ts";
 import { formatNextRun } from "../ui/src/ui/presenter.ts";
 
 describe("formatNextRun", () => {
-  it("returns n/a for nullish values", () => {
-    expect(formatNextRun(null)).toBe("n/a");
-    expect(formatNextRun(undefined)).toBe("n/a");
+  it("returns localized n/a for nullish values", () => {
+    expect(formatNextRun(null)).toBe(t("common.na"));
+    expect(formatNextRun(undefined)).toBe(t("common.na"));
   });
 
   it("includes weekday and relative time", () => {
     const ts = Date.UTC(2026, 1, 23, 15, 0, 0);
     const out = formatNextRun(ts);
-    expect(out).toMatch(/^[A-Za-z]{3}, /);
+    const weekday = new Date(ts).toLocaleDateString(undefined, { weekday: "short" });
+    expect(out.slice(0, weekday.length + 2)).toBe(`${weekday}, `);
     expect(out).toContain("(");
     expect(out).toContain(")");
   });