Summer Solstice — Born Hour

Summer Solstice: longest day at 90° — peak yang light, mid-point of Wu month.

Overview

Xia Zhi (夏至) is the solstice Zhong Qi of Wu month. Northern daylight peaks; classical models say yin begins to sprout within yang.

Pentads: 鹿角解、蜩始鸣、半夏生. 'Nine nines' summer counting songs start from here in some regions.

Customs: noodles at solstice (冬至饺子夏至面) in northern China; ice rites in imperial calendars.

Near the solstice instant, verify true solar time for hour-accurate pillars — the node is defined astronomically.

Kind Zhong Qi · mid-point

Deepens 午 month.

Culture Custom

夏至面 is a northern table custom tied to 'harvest wheat, eat new noodles' — foodways around the solstice.

Three pentads: deer shed antlers; cicadas; pinellia grows.

Classical: sun reaches the north — longest day.

Month command: Wu mid-point; yang peaks, yin sprouts.

Solar Terms hub wiki

Month command wiki

True Solar Time wiki

Month command wiki

Five elements wiki

Find Summer Solstice in the almanac or chart engine output for your birth year and compare the instant with true solar time.

Jie nodes can move the Month Pillar; Zhong Qi deepen the same month without switching branch.

Summer Solstice is a calendrical node and cultural festival, not a weather guarantee or personal luck verdict.