àm-thâu-tōa-iù暗頭大幼

late at night

late at night; deep of the night; the middle of the night

English Wiktionary, “暗頭大幼” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E6%9A%97%E9%A0%AD%E5%A4%A7%E5%B9%BC · confidence: Medium (Wiktionary)