- the fifth Heavenly Stemthe fifth of the ten Heavenly Stems; also used to represent the fifth in a series, such as the letter 'E' or the Roman numeral 'V'
- 3rd earthly branchThird of the twelve earthly branches, associated with the tiger; often refers to the period between 3 a.m. and 5 a.m., the first month of the lunar calendar, or the compass point 60 degrees.