hour of the Dog; around 8pm
Archaic temporal unit from the traditional Japanese clock, corresponding roughly to 7–9 p.m. or 8–10 p.m. depending on the system. Used in historical contexts.
In the Edo period, the hour of the Dog was considered the start of night.
From 戌, the Dog in the twelvefold zodiac, and 刻, a period of time. The hour of the Dog traditionally covered approximately 7–9 p.m., centered on 8 p.m.