{"width":"100%","height":"190","title":"\u3010Ruby\u3011strftime\u306e\u4f7f\u3044\u65b9\u307e\u3068\u3081\uff5c\u65e5\u6642\u30d5\u30a9\u30fc\u30de\u30c3\u30c8","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fml-rand-note.hatenablog.com%2Fentry%2F%2Fruby%2Fstrftime\" title=\"\u3010Ruby\u3011strftime\u306e\u4f7f\u3044\u65b9\u307e\u3068\u3081\uff5c\u65e5\u6642\u30d5\u30a9\u30fc\u30de\u30c3\u30c8 - \u30e9\u30f3\u30c9ML\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","image_url":null,"description":"strftime\u3068\u306f\uff1f \u3088\u304f\u4f7f\u3046\u66f8\u5f0f\u4e00\u89a7 \u897f\u66a6\u8868\u793a\uff1a%Y\u3001%y \u6708\u306e\u8868\u793a\uff1a%m \u65e5\u306e\u8868\u793a\uff1a%d \u65e5\u6642\u306e\u8868\u793a\uff1a%D\u3001%x\u3001%F \u6642\u9593\u306e\u8868\u793a\uff1a%H\u3001%I \u53c2\u8003 strftime\u3068\u306f\uff1f Time\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u65e5\u6642\u3092\u81ea\u7531\u306a\u5f62\u5f0f\u306e\u6587\u5b57\u5217\u306b\u5909\u63db\u3059\u308b\u305f\u3081\u306e\u30e1\u30bd\u30c3\u30c9\u3002 \u4f8b\u3048\u3070\u3001\u300cyyyy-mm-dd\u300d\u306e\u5f62\u5f0f\u3067\u8868\u3057\u305f\u3044\u3068\u304d\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u66f8\u304d\u307e\u3059\u3002 require 'date' # 2001\u5e742\u67083\u65e5 04\u664205\u520606\u79d2 t = Time.new(2001,2,3,4,5,6,\"+09:00\") p t.strftime(\"%Y-%m-%d\") #=> \"2001-02-03\" \u3088\u304f\u4f7f\u3046\u66f8\u5f0f\u4e00\u89a7 \u66f8\u5f0f \u610f\u5473 \u51fa\u529b\u2026","url":"https://ml-rand-note.hatenablog.com/entry//ruby/strftime","published":"2026-06-17 23:39:41","author_url":"https://blog.hatena.ne.jp/round-rand/","version":"1.0","provider_name":"Hatena Blog","type":"rich","categories":["Ruby"],"blog_title":"\u30e9\u30f3\u30c9ML","blog_url":"https://ml-rand-note.hatenablog.com/","provider_url":"https://hatena.blog","author_name":"round-rand"}