日にち次第よ。

日にち次第よ。

It really depends on when.

日(ひ)にち次第(しだい)よ。

Hinichi shidai yo.

日日 (ひにち)

the number of days; date

次第 (しだい)

dependent upon; as soon as; immediately (upon); circumstances; order; precedence; program; programme; agenda

よ (よ)

indicates certainty, emphasis, contempt, request, etc.; used when calling out to someone; used to catch one's breath or get someone's attention; yo!

Readings: ニチ、ジツ、ひ、 -び、 -か

Meanings: day, sun, Japan, counter for days

Readings: ジ、シ、つ.ぐ、つぎ

Meanings: next, order, sequence

Readings: ダイ、テイ

Meanings: No., residence