day of the Tiger
Archaic term referring to a day in the sexagenary cycle associated with the Tiger zodiac sign. Used in historical or traditional contexts.
昔の暦では、寅の日は特別な行事が行われた。
In old calendars, special events were held on the day of the Tiger.
Compound of 寅 (tora, 'Tiger', the third sign of the Chinese zodiac) + の (no, possessive particle) + 日 (hi, 'day'). The term follows the pattern of naming days after zodiac signs in the traditional sexagenary cycle.