• Basic forms
• 更ける — grow late; deepen (time) / base form
• 更けます — grows late / masu form
• 更けた — grew late / ta form
• 更けて — growing late … / te form
• 更けない — does not grow late / negative
• 更ければ — if (time) grows late / conditional
• Common expressions
• 夜が更ける — the night grows late
• 更けゆく夜 — the deepening night
• 話し込むうちに夜が更けた — the night grew late as we talked
• More
• 夜が更けている — the night is deep / state

更ける（ふける） is a godan intransitive verb. It is used almost exclusively for time — especially night — becoming late or deep. The verb has a literary tone and is common in written and narrative contexts.