{"id":78601,"date":"2024-02-27T01:39:05","date_gmt":"2024-02-26T16:39:05","guid":{"rendered":"https://freelance.indieverse.co.jp/media/?p=78601"},"modified":"2025-11-01T16:37:05","modified_gmt":"2025-11-01T07:37:05","slug":"python-datetime","status":"publish","type":"post","link":"https://freelance.indieverse.co.jp/media/programming/python/python-datetime","title":{"rendered":"pythonのdatetimeで日付だけ取得する方法について現役エンジニアが解説"},"content":{"rendered":"\n

と悩まれている方向けに、この記事ではdatetimeの日付だけ取得する方法について解説します。

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\ndatetimeモジュールとは

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Pythonのdatetimeモジュールは、日付や時間を簡単に扱うためのクラスを提供します。

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このモジュールには、日付（date）、時間（time）、日付と時間の組み合わせ（datetime）、時間差（timedelta）などを扱うためのクラスが含まれています。

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\n
from datetime import date\r\n# 今日の日付を取得\r\ntoday = date.today()\r\nprint(today)
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このコードの実行結果は、実行した日によって異なりますが、`YYYY-MM-DD`形式の日付が出力されます。

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日付の取得方法

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日付を取得する基本的な方法には、現在の日付を取得する方法と、特定の日付を指定して生成する方法があります。

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from datetime import date\r\n# 今日の日付を取得\r\ntoday = date.today()\r\nprint(\"今日の日付:\", today)\r\n# 特定の日付を指定して生成\r\nsome_day = date(2023, 4, 1)\r\nprint(\"特定の日付:\", some_day)
\n
\n

日付のフォーマット

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日付を人が読みやすい形式にフォーマットするには、strftimeメソッドを使用します。

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\n
from datetime import date\r\ntoday = date.today()\r\n# YYYY-MM-DD 形式で出力\r\nprint(\"フォーマット後の日付:\", today.strftime(\"%Y-%m-%d\"))
\n
\n","protected":false},"excerpt":{"rendered":"

Pythonのdatetimeで日付だけを取得する方法を現役エンジニアが解説。date.today()や指定日生成、strftimeでのフォーマットまでサンプル付きで紹介します。

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