diff --git a/dbt-bigquery/.changes/unreleased/Features-20250209-123750.yaml b/dbt-bigquery/.changes/unreleased/Features-20250209-123750.yaml
new file mode 100644
index 000000000..386857699
--- /dev/null
+++ b/dbt-bigquery/.changes/unreleased/Features-20250209-123750.yaml
@@ -0,0 +1,6 @@
+kind: Features
+body: Make expiration of temp table dynamic, based on model timeout.
+time: 2025-02-09T12:37:50.314467072+01:00
+custom:
+    Author: gjskibinski
+    Issue: "805"
diff --git a/dbt-bigquery/src/dbt/adapters/bigquery/impl.py b/dbt-bigquery/src/dbt/adapters/bigquery/impl.py
index 51c457129..073faa5a4 100644
--- a/dbt-bigquery/src/dbt/adapters/bigquery/impl.py
+++ b/dbt-bigquery/src/dbt/adapters/bigquery/impl.py
@@ -144,6 +144,9 @@ class BigQueryAdapter(BaseAdapter):
     def __init__(self, config, mp_context: SpawnContext) -> None:
         super().__init__(config, mp_context)
         self.connections: BigQueryConnectionManager = self.connections
+        self.job_execution_timeout_seconds: int = int(
+            self.config.credentials.job_execution_timeout_seconds or 60 * 60 * 12
+        )
 
     ###
     # Implementations of abstract methods
@@ -774,7 +777,9 @@ def get_table_options(
             opts["kms_key_name"] = f"'{config.get('kms_key_name')}'"
 
         if temporary:
-            opts["expiration_timestamp"] = "TIMESTAMP_ADD(CURRENT_TIMESTAMP(), INTERVAL 12 hour)"
+            opts["expiration_timestamp"] = (
+                f"TIMESTAMP_ADD(CURRENT_TIMESTAMP(), INTERVAL {self.job_execution_timeout_seconds} second)"
+            )
         else:
             # It doesn't apply the `require_partition_filter` option for a temporary table
             # so that we avoid the error by not specifying a partition with a temporary table
diff --git a/dbt-bigquery/tests/unit/test_bigquery_adapter.py b/dbt-bigquery/tests/unit/test_bigquery_adapter.py
index e57db9a62..3bc74e934 100644
--- a/dbt-bigquery/tests/unit/test_bigquery_adapter.py
+++ b/dbt-bigquery/tests/unit/test_bigquery_adapter.py
@@ -775,14 +775,14 @@ def test_hours_to_expiration(self):
         actual = adapter.get_table_options(mock_config, node={}, temporary=False)
         self.assertEqual(expected, actual)
 
-    def test_hours_to_expiration_temporary(self):
+    def test_seconds_to_expiration_temporary(self):
         adapter = self.get_adapter("oauth")
         mock_config = create_autospec(RuntimeConfigObject)
         config = {"hours_to_expiration": 4}
         mock_config.get.side_effect = lambda name: config.get(name)
 
         expected = {
-            "expiration_timestamp": ("TIMESTAMP_ADD(CURRENT_TIMESTAMP(), INTERVAL 12 hour)"),
+            "expiration_timestamp": ("TIMESTAMP_ADD(CURRENT_TIMESTAMP(), INTERVAL 43200 second)"),
         }
         actual = adapter.get_table_options(mock_config, node={}, temporary=True)
         self.assertEqual(expected, actual)