Acupuncture Continuing Education

Organ Clock

Organ Clock


The time of day correlates to the flow of qi through the twelve major meridians and their respective internal organs. The following is the cycle of qi through the channels: 


  1. Lung Hand-Taiyin
  2. Large Intestine Hand-Yangming
  3. Stomach Foot Yangming
  4. Spleen Foot-Taiyin
  5. Heart Hand-Shaoyin
  6. Small Intestine Hand-Taiyang
  7. Bladder Foot-Taiyang
  8. Kidney Foot-Shaoyin
  9. Pericardium Hand-Jueyin
  10. Triple Burner Hand-Shaoyang
  11. Gallbladder Foot-Shaoyang
  12. Liver Foot-Jueyin


Once the cycle is complete, it repeats. The time of day correlations are as follows: 


  • 3–5 am: Lung Hand-Taiyin
  • 5–7am: Large Intestine Hand-Yangming
  • 7–9am: Stomach Foot Yangming
  • 9–11am: Spleen Foot-Taiyin
  • 11am–1pm: Heart Hand-Shaoyin
  • 1–3pm: Small Intestine Hand-Taiyang
  • 3–5pm: Bladder Foot-Taiyang
  • 5–7pm: Kidney Foot-Shaoyin
  • 7–9pm: Pericardium Hand-Jueyin
  • 9–11pm: Triple Burner Hand-Shaoyang
  • 11pm–1am: Gallbladder Foot-Shaoyang
  • 1–3am: Liver Foot-Jueyin



In the organ clock (pictured above), the times are color coded by the Five Element designation for each organ/channel relationship. According to Five Element principles, the following colors correspond in the following manner:


  • Red, Fire
  • Yellow, Earth
  • White, Metal
  • Dark, Water
  • Green, Wood



Along with the Traditional Chinese Medicine (TCM) time correlations for channel qi, there is also a cultural designation for the times of day in the Chinese astrological system. There is a cycle of 12 animal signs both annually and hourly. Chinese astrology attributes qualities for the animal year and hour in which a person is born:


  • 11am -1am: Rat
  • 1am – 3 am: Ox
  • 3am – 5 am: Tiger
  • 5am – 7 am: Rabbit
  • 7am – 9am: Dragon
  • 9am – 11am: Snake
  • 11am – 1pm: Horse
  • 1pm – 3pm: Goat
  • 3pm – 5pm: Monkey
  • 5pm – 7pm: Rooster
  • 7pm – 9pm: Dog
  • 9pm – 11pm: Pig


To learn about the Chinese New Year animal signs, visit the following page:

Chinese New Year Signs >




Acupuncture Continuing Education Credits