If you were born on February 29th, on what day do you legally turn 18 or 21 in a common non-leap year? The answer varies across jurisdictions and legal traditions.
English Common Law Tradition (UK, USA, Australia)
Under common law precedents dating back to the Statute De Anno Bissextili 1256 and modern interpretations, a person born on Feb 29 attains their legal birthday on March 1st during non-leap years because February 28th represents only 364 days since the previous anniversary.
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