For example: (Stem) over Tiger (Branch).
This ancient Chinese metaphysical system is far more complex than the 12-year animal zodiac cycle. It is a sophisticated astrological chart that has been used for centuries for life path analysis, compatibility, career planning, and health forecasting.
This adjusts for "True Solar Time." If you were born at 8:00 AM in Beijing (UTC+8) vs. 8:00 AM in Los Angeles (UTC-8), your Hour Pillar changes.
If you don't know your time, use 12:00 PM (noon) or 6:00 AM, but note: the Hour Pillar will be wrong . For serious readings, find your birth certificate.
Have you used a Four Pillars calculator before? Did it get your zodiac animal right? Share your "Day Master" element in the comments below!