diff --git a/aviary/interface/methods_for_level2.py b/aviary/interface/methods_for_level2.py
index 097d476d4..04aa7a971 100644
--- a/aviary/interface/methods_for_level2.py
+++ b/aviary/interface/methods_for_level2.py
@@ -1366,7 +1366,9 @@ def run_off_design_mission(
             )
 
         if name is None:
-            name = name = self._name + '_off_design'
+            name = self._name + '_' + str(problem_type.value)
+            curr_time = datetime.now().strftime('%m%d%y%H%M%S')
+            name += '_' + curr_time
         off_design_prob = AviaryProblem(name=name)
 
         # Set up problem for mission, such as equations of motion, configurators, etc.
diff --git a/aviary/interface/test/test_save_results.py b/aviary/interface/test/test_save_results.py
index d15e24d86..c79e92b97 100644
--- a/aviary/interface/test/test_save_results.py
+++ b/aviary/interface/test/test_save_results.py
@@ -1,5 +1,8 @@
 import unittest
+from unittest.mock import patch, Mock
 from copy import deepcopy
+from datetime import datetime
+import re
 
 from openmdao.utils.testing_utils import require_pyoptsparse, use_tempdirs
 
@@ -66,6 +69,18 @@ def test_fallout(self):
         prob = reload_aviary_problem('interface/test/sizing_results_for_test.json')
         prob.run_off_design_mission(problem_type='fallout', phase_info=local_phase_info)
 
+    @require_pyoptsparse(optimizer='IPOPT')
+    @patch('aviary.interface.methods_for_level2.datetime')
+    def test_output_naming(self, mock_datetime):
+        fixed_now = datetime(2026, 2, 5, 12, 1, 1)
+        mock_datetime.now.return_value = fixed_now
+
+        local_phase_info = deepcopy(phase_info)
+
+        prob = reload_aviary_problem('interface/test/sizing_results_for_test.json')
+        prob = prob.run_off_design_mission(problem_type='fallout', phase_info=local_phase_info)
+        self.assertTrue('fallout_020526120101' in prob._name)
+
     def compare_files(self, test_file, validation_file):
         """
         Compares the specified file with a validation file.