Calculating Exact Age
Accurate age calculation must account for leap years and varying days per month.
What is a Leap Year?
A year with 366 days, occurring every 4 years (e.g. 2024, 2028) — February has 29 days.
Thai-Gregorian Calendar Conversion
Thai year (B.E.) = Gregorian year (A.D.) + 543. E.g. A.D. 2026 = B.E. 2569
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