diff --git a/src/infra/provider-usage.fetch.codex.test.ts b/src/infra/provider-usage.fetch.codex.test.ts
index 6078e2a9bd4..e74d0f25f65 100644
--- a/src/infra/provider-usage.fetch.codex.test.ts
+++ b/src/infra/provider-usage.fetch.codex.test.ts
@@ -79,4 +79,32 @@ describe("fetchCodexUsage", () => {
       { label: "Week", usedPercent: 10, resetAt: 1_700_500_000_000 },
     ]);
   });
+
+  it("labels secondary window as Week when reset cadence clearly exceeds one day", async () => {
+    const primaryReset = 1_700_000_000;
+    const weeklyLikeSecondaryReset = primaryReset + 5 * 24 * 60 * 60;
+    const mockFetch = createProviderUsageFetch(async () =>
+      makeResponse(200, {
+        rate_limit: {
+          primary_window: {
+            limit_window_seconds: 10_800,
+            used_percent: 14,
+            reset_at: primaryReset,
+          },
+          secondary_window: {
+            // Observed in production: API reports 24h, but dashboard shows a weekly window.
+            limit_window_seconds: 86_400,
+            used_percent: 20,
+            reset_at: weeklyLikeSecondaryReset,
+          },
+        },
+      }),
+    );
+
+    const result = await fetchCodexUsage("token", undefined, 5000, mockFetch);
+    expect(result.windows).toEqual([
+      { label: "3h", usedPercent: 14, resetAt: 1_700_000_000_000 },
+      { label: "Week", usedPercent: 20, resetAt: weeklyLikeSecondaryReset * 1000 },
+    ]);
+  });
 });
diff --git a/src/infra/provider-usage.fetch.codex.ts b/src/infra/provider-usage.fetch.codex.ts
index 28d155a6b57..0f37417dd18 100644
--- a/src/infra/provider-usage.fetch.codex.ts
+++ b/src/infra/provider-usage.fetch.codex.ts
@@ -19,6 +19,31 @@ type CodexUsageResponse = {
   credits?: { balance?: number | string | null };
 };
 
+const WEEKLY_RESET_GAP_SECONDS = 3 * 24 * 60 * 60;
+
+function resolveSecondaryWindowLabel(params: {
+  windowHours: number;
+  secondaryResetAt?: number;
+  primaryResetAt?: number;
+}): string {
+  if (params.windowHours >= 168) {
+    return "Week";
+  }
+  if (params.windowHours < 24) {
+    return `${params.windowHours}h`;
+  }
+  // Codex occasionally reports a 24h secondary window while exposing a
+  // weekly reset cadence in reset timestamps. Prefer cadence in that case.
+  if (
+    typeof params.secondaryResetAt === "number" &&
+    typeof params.primaryResetAt === "number" &&
+    params.secondaryResetAt - params.primaryResetAt >= WEEKLY_RESET_GAP_SECONDS
+  ) {
+    return "Week";
+  }
+  return "Day";
+}
+
 export async function fetchCodexUsage(
   token: string,
   accountId: string | undefined,
@@ -65,7 +90,11 @@ export async function fetchCodexUsage(
   if (data.rate_limit?.secondary_window) {
     const sw = data.rate_limit.secondary_window;
     const windowHours = Math.round((sw.limit_window_seconds || 86400) / 3600);
-    const label = windowHours >= 168 ? "Week" : windowHours >= 24 ? "Day" : `${windowHours}h`;
+    const label = resolveSecondaryWindowLabel({
+      windowHours,
+      primaryResetAt: data.rate_limit?.primary_window?.reset_at,
+      secondaryResetAt: sw.reset_at,
+    });
     windows.push({
       label,
       usedPercent: clampPercent(sw.used_percent || 0),