diff --git a/src/env/schema.mjs b/src/env/schema.mjs
index bfcac36..b9dae59 100644
--- a/src/env/schema.mjs
+++ b/src/env/schema.mjs
@@ -1,8 +1,6 @@
 // @ts-check
 import { z } from 'zod';
-
-// If this line fails, you're not running Node v18 or higher. Please upgrade.
-const TimezoneSchema = z.enum(Intl.supportedValuesOf("timeZone"));
+import { TimezoneSchema } from '@/utils/timezone';
 
 /**
  * Specify your server-side environment variables schema here.