元号（和暦）
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<timefyi-glossary slug="japanese-era-calendar"></timefyi-glossary>定義
年号（元号）内で年が数えられる日本の伝統的な暦制度。現在の元号は令和（2019年〜、天皇徳仁の即位に始まる）。公式文書で広く使用される。