そろそろ戻る時間だ。

そろそろ戻る時間だ。

It's about time we went back.

そろそろ戻(もど)る時間(じかん)だ。

Sorosoro modoru jikan da.

そろそろ (そろそろ、そろっと)

slowly; quietly; steadily; gradually; gingerly; soon; momentarily; before long; any time now

戻る (もどる)

to turn back (e.g. half-way); to return; to go back; to recover (e.g. something lost); to be returned; to rebound; to spring back

時間 (じかん)

time; hours

だ (だ)

be; is; indicates past or completed action; indicates light imperative

Readings: レイ、もど.す、もど.る

Meanings: re-, return, revert, resume, restore, go backwards

Readings: ジ、とき、 -どき

Meanings: time, hour

Readings: カン、ケン、あいだ、ま、あい

Meanings: interval, space