Daily Qi

Explore lunar dates, Four Pillars, double-hours, solar terms, and their cultural context from ancient Chinese culture.

Ancient Chinese philosophy begins with a simple idea: the universe is interconnected, and change follows recognizable patterns. The Five Phases were one way to name those patterns in nature, in the calendar, and in everyday living.

In that spirit, time is something you live with, not just measure. The calendar marks when to sow and harvest; solar terms track the breath of the seasons; the Five Phases describe how change moves through the world in patterns you can recognize in a cup of tea, a walk outside, or the color of the day.

Daily Qi is a quiet companion for that rhythm. See the lunar date, solar term, double-hour (shichen), and Four Pillars for the moment—plus the Five Phase colors that thread through the calendar—on iPhone, on Home Screen and Lock Screen widgets, and on a dedicated Apple Watch app. No account, no ads, no tracking.

What's in it: • Gregorian and lunar dates side by side • Four Pillars (year, month, day, hour) with clear English labels • All 24 solar terms, double-hours, and seasonal context • Ten Five Phase color themes • Widgets for iPhone + Apple Watch app and wrist complications • English UI with optional traditional Chinese calendar terms

Note: Four Pillars name a moment on the traditional calendar—they are not personality profiles or life guidance. Meridian and seasonal notes are for cultural and general lifestyle reference only, not medical advice.