私たちが寝る時間だ。

私たちが寝る時間だ。

It's time for us to go to bed.

私(わたし)たちが寝(ね)る時間(じかん)だ。

Watashitachi ga neru jikan da.

私たち (わたしたち、わたくしたち)

we; us

が (が)

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

寝る (ねる)

to lie down; to go to bed; to lie in bed; to sleep (lying down); to sleep (with someone, i.e. have intercourse); to lie idle

時間 (じかん)

time; hours

だ (だ)

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

Readings: シ、わたくし、わたし

Meanings: private, I, me

Readings: シン、ね.る、ね.かす、い.ぬ、みたまや、や.める

Meanings: lie down, sleep, rest, bed, remain unsold

Readings: ジ、とき、 -どき

Meanings: time, hour

Readings: カン、ケン、あいだ、ま、あい

Meanings: interval, space