{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fiikagenlabo.hatenablog.com%2Fentry%2F2019%2F07%2F16%2F005208\" title=\"M5Stack\u3067\u6307\u5b9a\u6642\u523b\u3092\u904e\u304e\u305f\u304b\u8abf\u3079\u308b - iikagenlabo\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","width":"100%","author_url":"https://blog.hatena.ne.jp/iikagenlabo/","version":"1.0","description":"NTP\u3067\u6642\u523b\u5408\u308f\u305b\u3092\u3057\u305f\u3089\u3001\u6307\u5b9a\u6642\u523b\u306b\u306a\u3063\u305f\u3089\u4f55\u304b\u3092\u51e6\u7406\u3055\u305b\u305f\u3044\u3068\u3053\u308d\u3067\u3059\u3088\u306d\u3002 \u524d\u56de\u7d39\u4ecb\u3057\u305fLocalClock\u30af\u30e9\u30b9\u3092\u4f7f\u3048\u3070\u3001checkTime()\u30e1\u30bd\u30c3\u30c9\u3067\u6307\u5b9a\u6642\u523b\u306b\u306a\u3063\u305f\u304b\u3069\u3046\u304b\u304c\u8abf\u3079\u3089\u308c\u307e\u3059\u3002 \u6307\u5b9a\u6642\u523b\u306b\u306a\u3063\u305f\u304b\u3069\u3046\u304b\u3092\u8abf\u3079\u308b\u306b\u306f\u3001\u4e00\u5b9a\u9593\u9694\u3067\u6642\u523b\u3092\u53d6\u5f97\u3057\u3066\u904e\u304e\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3067\u5206\u304b\u308a\u307e\u3059\u3002 \u51e6\u7406\u81ea\u4f53\u306f\u7c21\u5358\u3067\u3059\u304c\u3001\u6642\u9593\u8868\u73fe\u304c\u95a2\u6570\u306b\u3088\u3063\u3066\u3061\u304c\u3044\u5730\u5473\u306b\u3081\u3093\u3069\u304f\u3055\u304b\u3063\u305f\u306e\u3067\u7d39\u4ecb\u3057\u307e\u3059\u3002 \u307e\u305a\u3001\u6642\u9593\u306e\u5dee\u5206\u3092\u6c42\u3081\u308b\u306b\u306ftime.h\u306b\u3042\u308bdifftime()\u3068\u3044\u3046\u95a2\u6570\u3092\u4f7f\u3044\u307e\u3059\u3002 \u3053\u308c\u306ftime_t\u3092\u5f15\u6570\u306b\u53d6\u308a\u3001\u6642\u9593\u5dee\u3092\u79d2\u5358\u4f4d\u306edouble\u578b\u3067\u8fd4\u3057\u307e\u3059\u3002 double difftime(time_t\u2026","blog_title":"iikagenlabo","published":"2019-07-16 00:52:08","author_name":"iikagenlabo","image_url":null,"provider_url":"https://hatena.blog","blog_url":"https://iikagenlabo.hatenablog.com/","provider_name":"Hatena Blog","categories":["M5Stack"],"title":"M5Stack\u3067\u6307\u5b9a\u6642\u523b\u3092\u904e\u304e\u305f\u304b\u8abf\u3079\u308b","height":"190","url":"https://iikagenlabo.hatenablog.com/entry/2019/07/16/005208","type":"rich"}