diff --git a/apps/backend/src/jobs/jobs.service.spec.ts b/apps/backend/src/jobs/jobs.service.spec.ts
index 782a5f7d..1895901f 100644
--- a/apps/backend/src/jobs/jobs.service.spec.ts
+++ b/apps/backend/src/jobs/jobs.service.spec.ts
@@ -1360,6 +1360,9 @@ describe("JobsService schedule rows", () => {
   });
 
   it("data_set_lifecycle_check job skips when disabled", async () => {
+    vi.useFakeTimers();
+    vi.setSystemTime(new Date("2024-01-01T12:00:00Z"));
+
     baseConfigValues = {
       ...baseConfigValues,
       jobs: { ...baseConfigValues.jobs, dataSetLifecycleCheckEnabled: false } as IConfig["jobs"],
@@ -1386,6 +1389,9 @@ describe("JobsService schedule rows", () => {
   });
 
   it("data_set_lifecycle_check job creates and terminates a throwaway data set when enabled", async () => {
+    vi.useFakeTimers();
+    vi.setSystemTime(new Date("2024-01-01T12:00:00Z"));
+
     baseConfigValues = {
       ...baseConfigValues,
       jobs: { ...baseConfigValues.jobs, dataSetLifecycleCheckEnabled: true } as IConfig["jobs"],