hour of the Tiger (approx. 3–5 AM)
Archaic temporal unit from the traditional Chinese-derived time system. The exact span varies by period, but commonly 3–5 AM. Used in historical or literary contexts.
In the old time system, the hour of the Tiger corresponds to the pre-dawn period.
From the traditional East Asian zodiac-based timekeeping system, where each of the twelve double-hours was named after an animal sign. 寅 (tora, 'tiger') is the third sign, corresponding roughly to 3–5 AM.