The two characters of the day someone was born. They come round every sixty days, and they are the third of the four pillars.
What it is made of
The stem Byeong (병, 丙) is the yang of Fire.
The branch O (오, 午) is the yang of Fire.
O carries Jeong (정, 丁), Gi (기, 己) inside it. Korean calls these 지장간 — the stems hidden in a branch.
The stem and the branch are the same element.
On the calendar
O is the character for the month that opens at Mangjong (Grain in Ear), and for the hours from 11am to 12:59pm.
It sits 43rd in the cycle of sixty. Days run in that order, so the same two characters come back every sixty days.
Days that were Byeong-o in 2027
A day turns at midnight. For a birth between 11pm and midnight, some schools read the next day instead. CELESTRY reads it as the same day by default and lets you choose the other.
Days that were Byeong-o in 2026
Days that were Byeong-o in 2025
Days that were Byeong-o in 2024
Days that were Byeong-o in 2023
Days that were Byeong-o in 2022
Days that were Byeong-o in 2021
Days that were Byeong-o in 2020
Days that were Byeong-o in 2019
Days that were Byeong-o in 2018
Days that were Byeong-o in 2017
Days that were Byeong-o in 2016
Days that were Byeong-o in 2015
Days that were Byeong-o in 2014
Days that were Byeong-o in 2013
Days that were Byeong-o in 2012
Days that were Byeong-o in 2011
Days that were Byeong-o in 2010
Days that were Byeong-o in 2009
Days that were Byeong-o in 2008
Days that were Byeong-o in 2007
Days that were Byeong-o in 2006
Days that were Byeong-o in 2005
Days that were Byeong-o in 2004
Days that were Byeong-o in 2003
Days that were Byeong-o in 2002
Days that were Byeong-o in 2001
Days that were Byeong-o in 2000
Days that were Byeong-o in 1999
Days that were Byeong-o in 1998
Days that were Byeong-o in 1997
Days that were Byeong-o in 1996
Days that were Byeong-o in 1995
Days that were Byeong-o in 1994
Days that were Byeong-o in 1993
Days that were Byeong-o in 1992
Days that were Byeong-o in 1991
Days that were Byeong-o in 1990
Days that were Byeong-o in 1989
Days that were Byeong-o in 1988
Days that were Byeong-o in 1987
Days that were Byeong-o in 1986
Days that were Byeong-o in 1985
Days that were Byeong-o in 1984
Days that were Byeong-o in 1983
Days that were Byeong-o in 1982
Days that were Byeong-o in 1981
Days that were Byeong-o in 1980
Days that were Byeong-o in 1979
Days that were Byeong-o in 1978
Days that were Byeong-o in 1977
Days that were Byeong-o in 1976
Days that were Byeong-o in 1975
Days that were Byeong-o in 1974
Days that were Byeong-o in 1973
Days that were Byeong-o in 1972
Days that were Byeong-o in 1971
Days that were Byeong-o in 1970
Days that were Byeong-o in 1969
Days that were Byeong-o in 1968
Days that were Byeong-o in 1967
Days that were Byeong-o in 1966
Days that were Byeong-o in 1965
Days that were Byeong-o in 1964
Days that were Byeong-o in 1963
Days that were Byeong-o in 1962
Days that were Byeong-o in 1961
Days that were Byeong-o in 1960
Days that were Byeong-o in 1959
Days that were Byeong-o in 1958
Days that were Byeong-o in 1957
Days that were Byeong-o in 1956
Days that were Byeong-o in 1955
Days that were Byeong-o in 1954
Days that were Byeong-o in 1953
Days that were Byeong-o in 1952
Days that were Byeong-o in 1951
Days that were Byeong-o in 1950
A day pillar is not read on its own
The day pillar is one line of a four-line coordinate. Two people can share it and, with the other three lines different, not be alike.
CELESTRY reads all eight characters and writes down which of them each area was read from.