diff --git a/env/integtest_pg_conn.py b/env/integtest_pg_conn.py
index 61bb5be9..14d16a61 100644
--- a/env/integtest_pg_conn.py
+++ b/env/integtest_pg_conn.py
@@ -180,12 +180,19 @@ def test_time_query(self) -> None:
         pg_conn.restart_postgres()
 
         # Test
-        runtime, did_time_out, explain_data = pg_conn.time_query("select 1", 5)
-        # The runtime (in microseconds) should be within these two orders of magnitude.
-        self.assertTrue(100 <= runtime < 10000)
+        # No explain
+        runtime, did_time_out, explain_data = pg_conn.time_query("select pg_sleep(1)", 2)
+        # The runtime should be about 1 second.
+        self.assertTrue(abs(runtime - 1_000_000) < 100_000)
         self.assertFalse(did_time_out)
         self.assertIsNone(explain_data)
 
+        # With explain
+        runtime, did_time_out, explain_data = pg_conn.time_query("explain (analyze, format json, timing off) select pg_sleep(1)", 2)
+        self.assertTrue(abs(runtime - 1_000_000) < 100_000)
+        self.assertFalse(did_time_out)
+        self.assertIsNotNone(explain_data)
+
         # Cleanup
         pg_conn.shutdown_postgres()
 
diff --git a/env/pg_conn.py b/env/pg_conn.py
index ba1007e1..6f9d7afb 100644
--- a/env/pg_conn.py
+++ b/env/pg_conn.py
@@ -106,7 +106,7 @@ def time_query(self, query: str, timeout: float) -> tuple[float, bool, Any]:
         It returns the runtime, whether the query timed out, and the explain data.
         """
         did_time_out = False
-        has_explain = "EXPLAIN" in query
+        has_explain = "explain" in query.lower()
         explain_data = None
 
         try: