Age Calculation Formula:
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This calculator determines the exact age between two dates including years, months, days, hours, minutes, and seconds. It provides more precise age information than simple year-based calculations.
The calculator uses the following formula:
Where:
Explanation: The calculation computes the exact difference between two datetime values, breaking it down into all time components.
Details: Precise age calculation is important for medical applications, legal documentation, scientific research, and any scenario where exact age matters down to the minute or second.
Tips: Enter both dates in datetime format. The birth time must be earlier than the current time. You can use the current time as a reference or specify any past or future datetime.
Q1: How precise is this age calculator?
A: It calculates age down to the second, providing the most precise measurement possible.
Q2: Can I calculate age for future dates?
A: Yes, you can enter any future "current time" to calculate what the age will be at that point.
Q3: Does this account for leap years and daylight saving?
A: Yes, the PHP DateTime functions automatically account for all calendar complexities.
Q4: What's the maximum age this can calculate?
A: There's no practical limit - it can calculate age differences of thousands of years.
Q5: Can I use this for calculating time intervals between any events?
A: Absolutely. While designed for age calculation, it works for any two datetime points.