の時間よ

it's time for

→ の
phrase Rare #21,836
it's time for Follows a noun to announce that it is time for that activity or event. The sentence-ending よ adds emphasis or conveys an announcement; this phrasing can sound warm or feminine depending on the speaker and context.
JA: 宿題の時間よ。
EN: It's time for homework.

お茶の時間よ

It's tea time.

おねんねの時間よ

It’s time to go night-night.

お昼寝の時間よ

It's naptime.

おやつの時間よ

It’s snack time.

さあ出発の時間よ

Come on, it’s time to leave.

— 灼熱の魂 (2010)

大掃除の時間よ

It’s time for the big cleanup.

今はおやすみの時間よ

It's bedtime now.

— ソング・オブ・ザ・シー 海のうた (2014)

さあみんな写真の時間よ

Okay, everyone, it's time for pictures!

— アイム・スティル・ヒア (2024)

お風呂の時間よ

It's bath time.

— ライフ・イズ・ビューティフル (1997)