SkillsAdd

fandhe-ai/agent-reference-skills

dayjs

Day.js (軽量日付・時刻ライブラリ、Moment.js 互換 API) リファレンス。 parse, format, manipulate (add / subtract / startOf / endOf)、 query (isBefore / isAfter / isSame)、duration, relativeTime、 timezone, utc, plugin システム、locale、i18n。

First seen Mar 20, 2026

Installation

$ npx skills add fandhe-ai/agent-reference-skills --skill dayjs
View on skills.sh ↗ GitHub repository ↗

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More details

Agent compatibility

Declared targets from SKILL.md / docs. Unmarked agents are not listed — the skill may still install via the CLI.

Claude Code Not declared
Cursor Not declared
Codex Not declared
GitHub Copilot Not declared
Windsurf Not declared
Gemini CLI Not declared
Cline Not declared
OpenCode Not declared

Also listed on

Alternate registries and mirrors of this skill.

Repository health

Stars 3
Default branch main
Open issues 0
Status Active

Package contents

Files included with this skill beyond the listing page.

  • skill md SKILL.md 4,065 B
  • docs SUMMARY.md 285 B

History

  1. First seen on skills.sh
  2. First recorded snapshot · 18 installs

SKILL.md

Day.js API リファレンス

Day.js 公式ドキュメントの全 API を網羅したスキル。 ユーザーのタスクに応じて適切な README.md を読み、そこから個別ファイルへ辿ること。

ディレクトリ構成

skills/dayjs/
  SKILL.md
  references/
    installation/
      README.md
      installation.md
    parse/
      README.md
      parse.md
    get-set/
      README.md
      get-set.md
    manipulate/
      README.md
      manipulate.md
    display/
      README.md
      display.md
    query/
      README.md
      query.md
    i18n/
      README.md
      i18n.md
    plugin/
      README.md
      plugin-overview.md
      format-plugins.md
      display-plugins.md
      getset-plugins.md
      parse-plugins.md
      query-plugins.md
      timezone-utc-plugins.md
      other-plugins.md
    customization/
      README.md
      customization.md
    durations/
      README.md
      durations.md
    timezone/
      README.md
      timezone.md
  samples/
    README.md
    basic-parsing.md
    custom-format-parsing.md
    formatting.md
    add-subtract.md
    start-end-of.md
    comparison.md
    relative-time.md
    locale.md
    timezone.md
    duration.md
  scripts/
    README.md
    install.md
    plugin.md
    i18n.md
    customization.md
    test.md

探索手順

タスクからカテゴリを引き、カテゴリの README.md で目的のページを特定する:

  1. 下記マッピング表でタスクに対応するカテゴリを探す
  2. そのカテゴリの references/{category}/README.md を参照して目的のページを特定する
  3. 該当ページの .md を Read して詳細を確認する

タスク → カテゴリ マッピング

タスク カテゴリ 参照 README
npm install、CDN 読み込み、TypeScript 設定 installation [references/installation/README.md](references/installation/README.md)
dayjs() でオブジェクト生成、文字列パース、Unix タイムスタンプ、clone、isValid parse [references/parse/README.md](references/parse/README.md)
millisecond〜year の取得・設定、weekday、quarter、max、min get-set [references/get-set/README.md](references/get-set/README.md)
add、subtract、startOf、endOf、utcOffset による日時操作 manipulate [references/manipulate/README.md](references/manipulate/README.md)
format、fromNow、diff、unix、toDate、toJSON、toISOString display [references/display/README.md](references/display/README.md)
isBefore、isSame、isAfter、isBetween、isDayjs、isLeapYear query [references/query/README.md](references/query/README.md)
ロケール読み込み、言語切り替え、月名・曜日名一覧 i18n [references/i18n/README.md](references/i18n/README.md)
AdvancedFormat、RelativeTime、Duration、UTC、Timezone 等プラグイン plugin [references/plugin/README.md](references/plugin/README.md)
月名・曜日名カスタマイズ、相対時間テンプレート、カスタムロケール customization [references/customization/README.md](references/customization/README.md)
dayjs.duration()、humanize、format、as、get durations [references/durations/README.md](references/durations/README.md)
dayjs.tz()、タイムゾーン変換、デフォルトタイムゾーン設定 timezone [references/timezone/README.md](references/timezone/README.md)
典型的な使い方を知りたい samples [samples/README.md](samples/README.md)
インストール・CLI コマンド・プラグイン設定を知りたい scripts [scripts/README.md](scripts/README.md)