diff --git a/apps/frontend/src/components/layout/set.timezone.tsx b/apps/frontend/src/components/layout/set.timezone.tsx
index 0e406ef9..e0a3a604 100644
--- a/apps/frontend/src/components/layout/set.timezone.tsx
+++ b/apps/frontend/src/components/layout/set.timezone.tsx
@@ -6,22 +6,12 @@ import utc from 'dayjs/plugin/utc';
 dayjs.extend(timezone);
 dayjs.extend(utc);
 
-const {utc: originalUtc} = dayjs;
-
-dayjs.utc = new Proxy(originalUtc, {
-  apply(target, thisArg, args) {
-    const result = target.apply(thisArg, args);
-
-    // Attach `.local()` method to the returned Dayjs object
-    result.local = function () {
-      return result.tz(getTimezone());
-    };
-
-    return result;
-  },
-});
+const { utc: originalUtc } = dayjs;
 
 export const getTimezone = () => {
+  if (typeof window === 'undefined') {
+    return dayjs.tz.guess();
+  }
   return localStorage.getItem('timezone') || dayjs.tz.guess();
 };
 
@@ -31,6 +21,18 @@ export const newDayjs = (config?: ConfigType) => {
 
 const SetTimezone: FC = () => {
   useEffect(() => {
+    dayjs.utc = new Proxy(originalUtc, {
+      apply(target, thisArg, args) {
+        const result = target.apply(thisArg, args);
+
+        // Attach `.local()` method to the returned Dayjs object
+        result.local = function () {
+          return result.tz(getTimezone());
+        };
+
+        return result;
+      },
+    });
     if (localStorage.getItem('timezone')) {
       dayjs.tz.setDefault(getTimezone());
     }