今日が

today is

→ 今日
phrase Uncommon #11,946
today is 今日 means “today,” and が marks it as the subject. It is usually followed by a description or event, as in “today is the last day” or “today is a holiday.”
JA: 今日が私の誕生日です。
EN: Today is my birthday.

人形でいるのは今日が最後明日から人間の子供になる

Today is my last day as a doll. Starting tomorrow, I’ll become a human child.

— ほんとうのピノッキオ (2019)

今日がトムの誕生日だってことすっかり忘れてた

I completely forgot that today is Tom’s birthday.

今日が天気ならいいのに

I wish the weather were nice today.

今日がどれほど重要な分かってるはずだ

You should know how important today is.

— アメリカン・ギャングスター (2007)

今日が初日ふざけるな

Today’s your first day… Don’t mess with me!

— ビッグ・シック ぼくたちの大いなる目ざめ (2017)

今日が祝日だってこと完全に忘れてた

I completely forgot that today is a public holiday.

もし今日が地球最後の日だとしたら何をする

If today were the last day on Earth, what would you do?

今日がシズの最後の日になります

Today is my last day at Shizu.

— ウィキッド ふたりの魔女 (2024)

今日が土曜日だってこと忘れてた

I forgot that today is Saturday.

もう会えないからさ今日が最後

Because we won't be able to see each other again, today is the last time.

— ベイビー・ブローカー (2022)

今日が何日か分かりますか

Do you know what date it is today?

今日が日曜なら釣りに行くんだけどな

If today were Sunday, I’d go fishing.

もし今日が地球の最後の日だったら何を食べたいですか

If today were the last day on Earth, what would you want to eat?

今日がかい

Is it today?

— いまを生きる (1989)

今日が初日なので

Because today is my first day.

— サスペリア (1977)

今日が面接なんだろ

Your interview is today, right?

— エリート・スクワッド (2007)

もし今日が日曜日なら、私は釣りにいくのだが

If today were Sunday, I would go fishing.