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Browse all expert articles, guides, and tools related to Age Calculation.
Why "current year minus birth year" gives the wrong age, the correct calendar-aware algorithm, and how leap years and February 29th birthdays are handled.
Calculating your exact age to the day sounds simple — but leap years, months of different lengths, and timezone differences make it surprisingly tricky to do manually. This guide explains the algorithm and the surprising moments when precise age calculation really matters.