By the time I finished doing housework, it was already noon.
It was already noon by the time I finished doing housework.
ご質問ありがとうございます。
・「By the time I finished doing housework, it was already noon.」
「It was already noon by the time I finished doing housework.」
＝「家事を終えた時にはもう正午でした。」
（例文）Today was a really busy day. By the time I finished doing housework, it was already noon.
（訳）今日はとても忙しい日でした。家事を終えた時にはもう正午でした。
・家事のことを「household chores」という場合もあります。
（例文）I did household chores all day today.
（訳）私は今日一日中家事をしました。
お役に立てれば嬉しいです。
Coco
日本 
