diff --git a/app/react/components/dom/time.jsx b/app/react/components/dom/time.jsx
index 6fa0d92..118e522 100644
--- a/app/react/components/dom/time.jsx
+++ b/app/react/components/dom/time.jsx
@@ -1,4 +1,4 @@
-import {useCallback, useState} from 'react';
+import {memo, useCallback, useState} from 'react';
 
 import {useEcsTick} from '@/react/context/ecs.js';
 
@@ -19,6 +19,8 @@ export function Time({hour, minute}) {
   );
 }
 
+const MemoTime = memo(Time);
+
 function ConnectedTime() {
   const [hour, setHour] = useState(-1);
   const [minute, setMinute] = useState(0);
@@ -35,7 +37,7 @@ function ConnectedTime() {
   if (-1 === hour) {
     return false;
   }
-  return <Time hour={hour} minute={minute} />;
+  return <MemoTime hour={hour} minute={minute} />;
 }
 
 export default ConnectedTime;