Lunar almanac · real calendar
📅 Good-Day Picker
Pick any date: the real lunar calendar decides whether it is a hoàng đạo (auspicious) or hắc đạo (inauspicious) day, which of the twelve day-gods rules it, its trực duty officer with what to do and avoid, plus the six lucky hours — and a two-week strip to hunt for the next good day.
🔭 Next 14 days
📅 The hoàng đạo/hắc đạo system is folk tradition from the lunar almanac, not science — a good plan on a 'bad' day still beats a bad plan on a 'good' one. Day gods follow the classic month-branch cycle; trực follows the day-branch versus month-branch rule.