Legal age

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Legal age or codified age refers to age at which a person may legally engage in a certain activity. Most frequently, this is the age of majority (also known as the "age of maturity"), the threshold of adulthood as recognized in law.

Other ages of legal significance include:

Handling of February 29[edit]

If a legal age is to be attained by a person whose birthday is on February 29, the person may be deemed to reach the age by February 28 or March 1 on non-leap years depending on jurisdiction.


In Australia, the court has judged that a person whose birthday is on February 29 legally turns an adult on March 1, but not February 28.[1]

Hong Kong[edit]

Section 5, Cap. 410 Age of Majority Ordinance specifies that where a person has been born on 29 February in a leap year, the relevant anniversary in any year other than a leap year shall be taken to be 1 March.


Article 121 in the Civil Code specifies that, "if there is no corresponding day in the last month, the period ends with the ending of the last day of the last month.", and article 124 specifies that "The age of a person is counted from his birthday." Therefore, if the birthday is on February 29, it falls on February 28 if the date February 29 doesn't exist in a particular year.

See also[edit]


  1. ^ [PM v Children's Court of the Australian Capital Territory [2018] ACTSC 258]