diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 1ad216d9eae807d5029631bbbe234f2b9fdc19fd..a6d56be1a086febe825f3097aeded2dc8d0cfa0b 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -583,7 +583,6 @@ codec-comparison-on-main-push:
   stage: test
   tags:
     - sanitizer_test_main
-  timeout: "2 hours"
   artifacts:
     name: "$CI_JOB_NAME--main--sha-$CI_COMMIT_SHORT_SHA"
     when: always
@@ -592,150 +591,168 @@ codec-comparison-on-main-push:
       # second wildcard is necessary to get encoder and no-PLC run logs
       - "CLANG*/logs*"
 
+### --- sanitizer schedule A ---
+
+.sanitizer-test-schedule-A:
+  extends:
+    - .sanitizer-test-template
+  timeout: 2 hours 30 minutes
+
+
 sanitizer-test-mono:
-  extends: .sanitizer-test-template
+  extends: .sanitizer-test-schedule-A
   rules:
-    - if: $IS_SANITIZER_TEST_RUN
+    - if: $SANITIZER_SCHEDULE_A
   script:
     - *update-ltv-repo
     - python3 ci/run_scheduled_sanitizer_test.py mono mono --tests $SANITIZER_TESTS
 
 sanitizer-test-stereo:
-  extends: .sanitizer-test-template
+  extends: .sanitizer-test-schedule-A
   rules:
-    - if: $IS_SANITIZER_TEST_RUN
+    - if: $SANITIZER_SCHEDULE_A
       when: delayed
-      start_in: 1 hour
+      start_in: 2 hours 30 minutes
   script:
     - *update-ltv-repo
     - python3 ci/run_scheduled_sanitizer_test.py stereo $OUT_FORMATS_CHANNEL_BASED --tests $SANITIZER_TESTS
 
 sanitizer-test-stereodmxevs:
-  extends: .sanitizer-test-template
+  extends: .sanitizer-test-schedule-A
   rules:
-    - if: $IS_SANITIZER_TEST_RUN
+    - if: $SANITIZER_SCHEDULE_A
       when: delayed
-      start_in: 2 hours
+      start_in: 5 hours
   script:
     - *update-ltv-repo
     - python3 ci/run_scheduled_sanitizer_test.py StereoDmxEVS mono --tests $SANITIZER_TESTS
 
 sanitizer-test-ism1:
-  extends: .sanitizer-test-template
+  extends: .sanitizer-test-schedule-A
   rules:
-    - if: $IS_SANITIZER_TEST_RUN
+    - if: $SANITIZER_SCHEDULE_A
       when: delayed
-      start_in: 3 hours
+      start_in: 7 hours 30 minutes
   script:
     - *update-ltv-repo
     - python3 ci/run_scheduled_sanitizer_test.py ISM1 $OUT_FORMATS_CHANNEL_BASED $OUT_FORMATS_SCENE_BASED $OUT_FORMATS_BINAURAL EXT --tests $SANITIZER_TESTS
 
 sanitizer-test-ism2:
-  extends: .sanitizer-test-template
+  extends: .sanitizer-test-schedule-A
   rules:
-    - if: $IS_SANITIZER_TEST_RUN
+    - if: $SANITIZER_SCHEDULE_A
       when: delayed
-      start_in: 4 hours
+      start_in: 10 hours
   script:
     - *update-ltv-repo
     - python3 ci/run_scheduled_sanitizer_test.py ISM2 $OUT_FORMATS_CHANNEL_BASED $OUT_FORMATS_SCENE_BASED $OUT_FORMATS_BINAURAL EXT --tests $SANITIZER_TESTS
 
 sanitizer-test-ism3:
-  extends: .sanitizer-test-template
+  extends: .sanitizer-test-schedule-A
   rules:
-    - if: $IS_SANITIZER_TEST_RUN
+    - if: $SANITIZER_SCHEDULE_A
       when: delayed
-      start_in: 6 hours
+      start_in: 12 hours 30 minutes
   script:
     - *update-ltv-repo
     - python3 ci/run_scheduled_sanitizer_test.py ISM3 $OUT_FORMATS_CHANNEL_BASED $OUT_FORMATS_SCENE_BASED $OUT_FORMATS_BINAURAL EXT --tests $SANITIZER_TESTS
 
 sanitizer-test-ism4:
-  extends: .sanitizer-test-template
+  extends: .sanitizer-test-schedule-A
   rules:
-    - if: $IS_SANITIZER_TEST_RUN
+    - if: $SANITIZER_SCHEDULE_A
       when: delayed
-      start_in: 8 hours
+      start_in: 15 hours
   script:
     - *update-ltv-repo
     - python3 ci/run_scheduled_sanitizer_test.py ISM4 $OUT_FORMATS_CHANNEL_BASED $OUT_FORMATS_SCENE_BASED $OUT_FORMATS_BINAURAL EXT --tests $SANITIZER_TESTS
 
-sanitizer-test-mc-5_1:
-  extends: .sanitizer-test-template
+sanitizer-test-masa:
+  extends: .sanitizer-test-schedule-A
   rules:
-    - if: $IS_SANITIZER_TEST_RUN
+    - if: $SANITIZER_SCHEDULE_A
       when: delayed
-      start_in: 10 hours
+      start_in: 17 hours 30 minutes
+  script:
+    - *update-ltv-repo
+    - python3 ci/run_scheduled_sanitizer_test.py MASA $OUT_FORMATS_CHANNEL_BASED $OUT_FORMATS_SCENE_BASED $OUT_FORMATS_BINAURAL EXT --tests $SANITIZER_TESTS
+
+### --- sanitizer schedule B ---
+
+.sanitizer-test-schedule-B:
+  extends:
+    - .sanitizer-test-template
+  timeout: 3 hours
+
+sanitizer-test-mc-5_1:
+  extends: .sanitizer-test-schedule-B
+  rules:
+    - if: $SANITIZER_SCHEDULE_B
   script:
     - *update-ltv-repo
     - python3 ci/run_scheduled_sanitizer_test.py 5_1 $OUT_FORMATS_CHANNEL_BASED $OUT_FORMATS_SCENE_BASED $OUT_FORMATS_BINAURAL --tests $SANITIZER_TESTS
 
 sanitizer-test-mc-5_1_2:
-  extends: .sanitizer-test-template
+  extends: .sanitizer-test-schedule-B
   rules:
-    - if: $IS_SANITIZER_TEST_RUN
+    - if: $SANITIZER_SCHEDULE_B
       when: delayed
-      start_in: 12 hours
+      start_in: 3 hours
   script:
     - *update-ltv-repo
     - python3 ci/run_scheduled_sanitizer_test.py 5_1_2 $OUT_FORMATS_CHANNEL_BASED $OUT_FORMATS_SCENE_BASED $OUT_FORMATS_BINAURAL --tests $SANITIZER_TESTS
 
 sanitizer-test-mc-5_1_4:
-  extends: .sanitizer-test-template
+  extends: .sanitizer-test-schedule-B
   rules:
-    - if: $IS_SANITIZER_TEST_RUN
+    - if: $SANITIZER_SCHEDULE_B
       when: delayed
-      start_in: 14 hours
+      start_in: 6 hours
   script:
     - *update-ltv-repo
     - python3 ci/run_scheduled_sanitizer_test.py 5_1_4 $OUT_FORMATS_CHANNEL_BASED $OUT_FORMATS_SCENE_BASED $OUT_FORMATS_BINAURAL --tests $SANITIZER_TESTS
 
 sanitizer-test-mc-7_1:
-  extends: .sanitizer-test-template
+  extends: .sanitizer-test-schedule-B
   rules:
-    - if: $IS_SANITIZER_TEST_RUN
+    - if: $SANITIZER_SCHEDULE_B
       when: delayed
-      start_in: 16 hours
+      start_in: 9 hours
   script:
     - *update-ltv-repo
     - python3 ci/run_scheduled_sanitizer_test.py 7_1 $OUT_FORMATS_CHANNEL_BASED $OUT_FORMATS_SCENE_BASED $OUT_FORMATS_BINAURAL --tests $SANITIZER_TESTS
 
 sanitizer-test-mc-7_1_4:
-  extends: .sanitizer-test-template
+  extends: .sanitizer-test-schedule-B
   rules:
-    - if: $IS_SANITIZER_TEST_RUN
+    - if: $SANITIZER_SCHEDULE_B
       when: delayed
-      start_in: 18 hours
+      start_in: 12 hours
   script:
     - *update-ltv-repo
     - python3 ci/run_scheduled_sanitizer_test.py 7_1_4 $OUT_FORMATS_CHANNEL_BASED $OUT_FORMATS_SCENE_BASED $OUT_FORMATS_BINAURAL --tests $SANITIZER_TESTS
 
-sanitizer-test-masa:
-  extends: .sanitizer-test-template
-  rules:
-    - if: $IS_SANITIZER_TEST_RUN
-      when: delayed
-      start_in: 20 hours
-  script:
-    - *update-ltv-repo
-    - python3 ci/run_scheduled_sanitizer_test.py MASA $OUT_FORMATS_CHANNEL_BASED $OUT_FORMATS_SCENE_BASED $OUT_FORMATS_BINAURAL EXT --tests $SANITIZER_TESTS
+### --- sanitizer schedule C ---
+
+.sanitizer-test-schedule-C:
+  extends:
+    - .sanitizer-test-template
+  timeout: 6 hours
 
 sanitizer-test-sba:
-  extends: .sanitizer-test-template
+  extends: .sanitizer-test-schedule-C
   rules:
-    - if: $IS_SANITIZER_TEST_RUN
-      when: delayed
-      start_in: 22 hours
+    - if: $SANITIZER_SCHEDULE_C
   script:
     - *update-ltv-repo
     - python3 ci/run_scheduled_sanitizer_test.py SBA $OUT_FORMATS_CHANNEL_BASED $OUT_FORMATS_SCENE_BASED $OUT_FORMATS_BINAURAL --tests $SANITIZER_TESTS
 
 sanitizer-test-planarsba:
-  extends: .sanitizer-test-template
+  extends: .sanitizer-test-schedule-C
   rules:
-    - if: $IS_SANITIZER_TEST_RUN
+    - if: $SANITIZER_SCHEDULE_C
       when: delayed
-      start_in: 24 hours
+      start_in: 6 hours
   script:
     - *update-ltv-repo
     - python3 ci/run_scheduled_sanitizer_test.py PlanarSBA $OUT_FORMATS_CHANNEL_BASED $OUT_FORMATS_SCENE_BASED $OUT_FORMATS_BINAURAL --tests $SANITIZER_TESTS
diff --git a/ci/run_scheduled_sanitizer_test.py b/ci/run_scheduled_sanitizer_test.py
index d2483627dfccf573d371eb349c125b76eb8313d4..644051a79bbc8165b10d91ca3c8c6d7f49773532 100644
--- a/ci/run_scheduled_sanitizer_test.py
+++ b/ci/run_scheduled_sanitizer_test.py
@@ -6,7 +6,7 @@ import subprocess
 import pathlib
 
 
-DURATION = "30"
+DURATION = "120"
 CFG = "ci_linux_ltv.json"
 SUPPORTED_TESTS = ["CLANG1", "CLANG2", "CLANG3", "VALGRIND"]
 EP_FILE = "ep_015.g192"