{"provider_url":"https://hatena.blog","description":"https://zenn.dev/cybozu_frontend/articles/calc-time-diff-on-your-own \u30b5\u30de\u30fc\u30bf\u30a4\u30e0\u306f\u300c\u5354\u5b9a\u4e16\u754c\u6642\u3068\u306e\u5dee\u300d\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u3067\u5b9f\u73fe\u3055\u308c\u3066\u3044\u308b\u3002 \u4f8b\u3048\u3070\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u300cAmerica/New_York\u300d\u306f\u3001\u6a19\u6e96\u6642\uff08\u51ac\u6642\u9593\uff09\u3092\u5229\u7528\u3059\u308b\u671f\u9593\u306fUTC-5\u306e\u6642\u9593\u3092\u73fe\u5730\u6642\u9593\u3068\u3057\u3066\u304a\u308a\u3001\u30b5\u30de\u30fc\u30bf\u30a4\u30e0\uff08\u590f\u6642\u9593\uff09\u671f\u9593\u306fUTC-4\u3092\u73fe\u5730\u6642\u9593\u3068\u3057\u3066\u3044\u308b\u3002 \u305d\u306e\u305f\u3081\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u304c\u6301\u3064\u60c5\u5831\u306f\u3001\u300c\u6a19\u6e96\u6642\u306eUTC\u3068\u306e\u5dee\u300d\u3060\u3051\u3067\u306f\u306a\u304f\u300c\u30b5\u30de\u30fc\u30bf\u30a4\u30e0\u671f\u9593\u306eUTC\u3068\u306e\u5dee\u300d\u300c\u30b5\u30de\u30fc\u30bf\u30a4\u30e0\u306e\u671f\u9593\u306e\u958b\u59cb\u65e5\u6642\u3001\u7d42\u4e86\u65e5\u6642\u300d\u3082\u6301\u3063\u3066\u304a\u308a\u3001\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3068UTC\u304b\u3089\u30b5\u30de\u30fc\u30bf\u30a4\u30e0\u3092\u8003\u616e\u3057\u2026","blog_title":"\u304f\u3089\u3052\u306eChangeLog","width":"100%","image_url":null,"title":"\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3068\u30b5\u30de\u30fc\u30bf\u30a4\u30e0\u306e\u95a2\u4fc2","version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fculage.hatenablog.com%2Fentry%2F2026%2F05%2F20%2F000000\" title=\"\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3068\u30b5\u30de\u30fc\u30bf\u30a4\u30e0\u306e\u95a2\u4fc2 - \u304f\u3089\u3052\u306eChangeLog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","published":"2026-05-20 00:00:00","categories":["program"],"url":"https://culage.hatenablog.com/entry/2026/05/20/000000","author_name":"ku__ra__ge","blog_url":"https://culage.hatenablog.com/","provider_name":"Hatena Blog","type":"rich","height":"190","author_url":"https://blog.hatena.ne.jp/ku__ra__ge/"}