解答例修正

Author: aster-void

docs/2-browser-apps/03-class/_samples/count-down/script.js

@@ -1,7 +1,7 @@
 const countdownBox = document.getElementById("countdown-box");
 
 const now = new Date();
-const remainingHours = 24 - now.getHours();
-const remainingMinutes = 60 - now.getMinutes();
+const remainingHours = 23 - now.getHours();
+const remainingMinutes = 59 - now.getMinutes();
 const remainingSeconds = 60 - now.getSeconds();
-countdownBox.textContent = `今日は残り${remainingHours}時間 ${remainingMinutes}分 ${remainingSeconds}秒です。`;
+countdownBox.textContent = `今日は残り${remainingHours}時間 ${remainingMinutes}分 ${remainingSeconds}秒です。`;

docs/2-browser-apps/03-class/index.mdx

@@ -396,8 +396,8 @@ document.write(false.toString()); // false
 const countdownBox = document.getElementById("countdown-box");
 
 const now = new Date();
-const remainingHours = 24 - now.getHours();
-const remainingMinutes = 60 - now.getMinutes();
+const remainingHours = 23 - now.getHours();
+const remainingMinutes = 59 - now.getMinutes();
 const remainingSeconds = 60 - now.getSeconds();
 countdownBox.textContent = `今日は残り${remainingHours}時間 ${remainingMinutes}分 ${remainingSeconds}秒です。`;
 ```