{"image_url":null,"blog_title":"shikaku's blog","provider_url":"https://hatena.blog","version":"1.0","categories":[],"title":"C++(MFC) \u7c21\u6613\u30b6\u30e9\u5834\u5224\u5b9a\u95a2\u6570","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.systemjp.net%2Fentry%2F2025%2F04%2F07%2F141709\" title=\"C++(MFC) \u7c21\u6613\u30b6\u30e9\u5834\u5224\u5b9a\u95a2\u6570 - shikaku&#39;s blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","width":"100%","author_name":"shikaku","author_url":"https://blog.hatena.ne.jp/shikaku/","description":"#include <chrono> #include <ctime> #include <iomanip> #include <sstream> #include <string> #include <Windows.h> // \u65e5\u672c\u6642\u9593\u3067\u55b6\u696d\u6642\u9593\u5185\uff089:00-15:30\u3001\u571f\u65e5\u3092\u9664\u304f\uff09\u304b\u3069\u3046\u304b\u3092\u5224\u5b9a\u3059\u308b\u95a2\u6570 BOOL IsJapanMarketHours() { // \u73fe\u5728\u306eUTC\u6642\u9593\u3092\u53d6\u5f97 auto now = std::chrono::system_clock::now(); auto now_time_t = std::chrono::system_clock::to_time_t(no\u2026","type":"rich","blog_url":"https://blog.systemjp.net/","published":"2025-04-07 14:17:09","url":"https://blog.systemjp.net/entry/2025/04/07/141709"}