diff --git a/CHANGELOG.md b/CHANGELOG.md
index 991c2a8369..d53ecb4e65 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -75,6 +75,7 @@ _In development — bullets added per PR; finalized at release._
 - **fix(command-code): pass `reasoning` / `thinking` fields through to upstream params** — Command Code requests carrying `reasoning`/`thinking` controls had those fields dropped before the upstream call, so reasoning-effort and extended-thinking settings were silently ignored; they are now forwarded to the upstream params. ([#4473](https://github.com/diegosouzapw/OmniRoute/pull/4473) — thanks @adivekar-utexas)
 - **fix(usage): keep Kiro overage-enabled accounts routable after base quota hits zero** — a Kiro account with overage enabled was excluded from routing once its base quota reached zero, even though overage billing should keep it serving; such accounts now stay routable past base-quota exhaustion. ([#4469](https://github.com/diegosouzapw/OmniRoute/issues/4469) — thanks @heaven321357 / @CleanDev-Fix)
 - **fix(providers): model-aware `supportsRedactedThinking` for mixed-format providers** — the redacted-thinking capability was resolved per provider rather than per model, so a mixed-format provider (some models support redacted thinking, others don't) got the wrong answer for some models; the check is now model-aware. ([#4479](https://github.com/diegosouzapw/OmniRoute/pull/4479) — thanks @TF0rd)
+- **fix(usage): parse numeric-string quota reset timestamps as Unix seconds/ms** — when a provider returned the quota reset timestamp as a numeric string (e.g. `"1700000000"`), `parseResetTime` passed it straight to `new Date(str)`, which returned `Invalid Date` and dropped the reset entirely (UI showed no reset). Numeric strings are now detected and treated as Unix timestamps with the same `< 1e12` seconds-vs-ms heuristic already applied to numeric values; ISO/parseable strings are untouched. Applied symmetrically in `codexUsageQuotas.parseResetTime`. (Inspired by upstream [decolua/9router#768](https://github.com/decolua/9router/pull/768) — thanks @DEYLNN)
 
 ### 🔒 Security
 
diff --git a/open-sse/services/codexUsageQuotas.ts b/open-sse/services/codexUsageQuotas.ts
index 6f595854d6..0a0d74a37e 100644
--- a/open-sse/services/codexUsageQuotas.ts
+++ b/open-sse/services/codexUsageQuotas.ts
@@ -41,14 +41,20 @@ function toNumber(value: unknown, fallback = 0): number {
 function parseResetTime(resetValue: unknown): string | null {
   if (!resetValue) return null;
   try {
-    const date =
-      resetValue instanceof Date
-        ? resetValue
-        : typeof resetValue === "number"
-          ? new Date(resetValue < 1e12 ? resetValue * 1000 : resetValue)
-          : typeof resetValue === "string"
-            ? new Date(resetValue)
-            : null;
+    let date: Date | null = null;
+    if (resetValue instanceof Date) {
+      date = resetValue;
+    } else if (typeof resetValue === "number") {
+      date = new Date(resetValue < 1e12 ? resetValue * 1000 : resetValue);
+    } else if (typeof resetValue === "string") {
+      // Numeric strings are Unix timestamps too (seconds or milliseconds).
+      if (/^\d+$/.test(resetValue)) {
+        const ts = Number(resetValue);
+        date = new Date(ts < 1e12 ? ts * 1000 : ts);
+      } else {
+        date = new Date(resetValue);
+      }
+    }
     if (!date || date.getTime() <= 0) return null;
     return date.toISOString();
   } catch {
diff --git a/open-sse/services/usage.ts b/open-sse/services/usage.ts
index 4e8c338c24..29446c9ad8 100644
--- a/open-sse/services/usage.ts
+++ b/open-sse/services/usage.ts
@@ -1625,7 +1625,14 @@ function parseResetTime(resetValue: unknown): string | null {
     } else if (typeof resetValue === "number") {
       date = new Date(resetValue < 1e12 ? resetValue * 1000 : resetValue);
     } else if (typeof resetValue === "string") {
-      date = new Date(resetValue);
+      // Numeric strings are Unix timestamps too (seconds or milliseconds).
+      // `new Date("1700000000")` otherwise returns Invalid Date.
+      if (/^\d+$/.test(resetValue)) {
+        const ts = Number(resetValue);
+        date = new Date(ts < 1e12 ? ts * 1000 : ts);
+      } else {
+        date = new Date(resetValue);
+      }
     } else {
       return null;
     }
diff --git a/tests/unit/usage-utils.test.ts b/tests/unit/usage-utils.test.ts
index 3d16d002e4..70f50dcc34 100644
--- a/tests/unit/usage-utils.test.ts
+++ b/tests/unit/usage-utils.test.ts
@@ -60,6 +60,21 @@ describe("parseResetTime", () => {
   it("returns null for invalid date strings", () => {
     assert.equal(__testing.parseResetTime("not-a-date"), null);
   });
+
+  // Inspired-by upstream decolua/9router#768 — provider APIs sometimes return
+  // the reset timestamp as a numeric string. Without explicit detection,
+  // `new Date("1700000000")` returns Invalid Date and the value is lost.
+  it("parses a numeric string in seconds (value < 1e12)", () => {
+    const sec = "1700000000";
+    const out = __testing.parseResetTime(sec);
+    assert.equal(out, new Date(Number(sec) * 1000).toISOString());
+  });
+
+  it("parses a numeric string already in milliseconds (value >= 1e12)", () => {
+    const ms = "1700000000000";
+    const out = __testing.parseResetTime(ms);
+    assert.equal(out, new Date(Number(ms)).toISOString());
+  });
 });
 
 /* ------------------------------------------------------------------ */