diff --git a/.eslintignore b/.eslintignore
index 1003a5fae..26f7c9ee6 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -2,3 +2,4 @@ backend/dist
 backend/__migration__
 docker
 backend/scripts
+**/vitest.config.js
diff --git a/backend/__tests__/global-setup.ts b/backend/__tests__/global-setup.ts
index 461ccb2f4..573bff62c 100644
--- a/backend/__tests__/global-setup.ts
+++ b/backend/__tests__/global-setup.ts
@@ -1,5 +1,6 @@
 import * as MongoDbMock from "vitest-mongodb";
-export async function setup({ provide }): Promise<void> {
+export async function setup(): Promise<void> {
+  process.env.TZ = "UTC";
   await MongoDbMock.setup({
     serverOptions: {
       binary: {
diff --git a/frontend/__tests__/global-setup.ts b/frontend/__tests__/global-setup.ts
new file mode 100644
index 000000000..89d5cfe50
--- /dev/null
+++ b/frontend/__tests__/global-setup.ts
@@ -0,0 +1,3 @@
+export const setup = () => {
+  process.env.TZ = "UTC";
+};
diff --git a/frontend/vitest.config.js b/frontend/vitest.config.js
index 5351a7ac9..3d607161a 100644
--- a/frontend/vitest.config.js
+++ b/frontend/vitest.config.js
@@ -4,6 +4,7 @@ export default defineConfig({
   test: {
     globals: true,
     environment: "happy-dom",
+    globalSetup: "__tests__/global-setup.ts",
     setupFiles: ["__tests__/setup-tests.ts"],
 
     coverage: {