diff --git a/src/resources/extensions/sf/tests/iter-completion-reconciler.test.mjs b/src/resources/extensions/sf/tests/iter-completion-reconciler.test.mjs
index fd2f97157..e3b336ea2 100644
--- a/src/resources/extensions/sf/tests/iter-completion-reconciler.test.mjs
+++ b/src/resources/extensions/sf/tests/iter-completion-reconciler.test.mjs
@@ -120,9 +120,14 @@ function makeMemDb() {
 	};
 }
 
-const TS_X = "2026-05-17T12:42:05.618Z";
-const TS_OLDER = "2026-05-17T11:00:00.000Z";
-const TS_NEWER = "2026-05-17T14:00:00.000Z";
+// Test timestamps are computed relative to NOW so the reconciler's default
+// maxAgeMs filter (1h — "older drift is operator territory") doesn't drop
+// them as the calendar moves past the original literal timestamps. Tests
+// that explicitly want stale entries pass their own past timestamp.
+const NOW_MS = Date.now();
+const TS_X = new Date(NOW_MS - 5 * 60 * 1000).toISOString(); // 5 min ago
+const TS_OLDER = new Date(NOW_MS - 30 * 60 * 1000).toISOString(); // 30 min ago
+const TS_NEWER = new Date(NOW_MS - 1 * 60 * 1000).toISOString(); // 1 min ago
 
 // ─── Tests ──────────────────────────────────────────────────────────────────