Dictionary / Vocabulary / 夜が更ける
よがふける
evening deepens into night; the night wears on; night advances
Also written 夜がふける
夜が更けるまで彼らの話は尽きなかった。
They didn't run out of conversation until late at night.
夜が更けるにつれて寒くなった。
It became colder as the night wore on.