日付の用法

・日付は（月→日→年）の順に書き、日の後にカンマを打つ。
［正］January 12, 2004
［誤］12 January 2004

・アメリカ政府は、海外向けには（月→日→年）の順に書き、国内向けには（日→月→年）の順に書く。
・アメリカ政府との契約書には、（日→月→年）の順に書かなければならないので注意を要する。

（海外向け文書）
［正］January 12, 2004
［誤］12 January 2004

（国内向け文書・契約書）
［誤］January 12, 2004
［正］12 January 2004

・イギリス英語においては、日付は（日→月→年）の順に書く。
［誤］January 12, 2004
［正］12 January 2004

・日付は前置詞"on"で表す
［正］Jane was born on the 2nd of April, 2001.
［誤］Jane was born on the 2nd of April 2001.
［誤］Jane was born on the 2nd of April in 2001.
［誤］Jane was born on the 2nd of April of 2001.
［誤］Babe Ruth was born on the 6th in February.
［正］Babe Ruth was born on the 6th of February.
［誤］Babe Ruth was born on the 6th, February.
［誤］Babe Ruth was born on Wednesday in February.
［誤］Babe Ruth was born on Wednesday of February.
［誤］Babe Ruth was born on Wednesday, February.
［誤］Babe Ruth was born on Wednesday in February in 1895.
［誤］Babe Ruth was born on Wednesday of February of 1895.
［誤］Babe Ruth was born on Wednesday, February, 1895.
［正］Babe Ruth was born on Wednesday, February 6, 1895.