Solar term
Major Cold
Major Cold falls on January 20, 2027 — one of the twenty-four solar terms that keep the Chinese calendar aligned with the sun.
The day itself
An Open day. — Say yes. Openings, launches, introductions — doors are easier to open than to close today. Day score 86 of 99.
What a solar term is
The sun moves 15° between terms. They mark the seasons rather than the moon, which is why the almanac's month pillar changes at a term rather than on the first of a Gregorian month.