今日一日

all day today

→ 今日
phrase Rare #32,962
all day today Can emphasize the whole day, or mean just for today when used with だけ.
JA: 今日一日、家でゆっくりします。
EN: I’ll relax at home all day today.

今日一日ずっと彼に電話をかけているが、話し中だ。

I've been trying to call him all day, but the line's been busy.

今日一日たくさん歩いたから、足が痛いよ。

My feet hurt because I walked a lot today.

今日一日、お前と話す機会がなかったから調子はどう?

I didn’t get a chance to talk to you all day today, so how are you doing?

— ミスティック・リバー (2003)

今日一日ずっと鍵を捜してるんだ。

I've been looking for my keys all day.

今日一日だけさ

Just for today.

— レオン (1994)