Question 1

How do I calculate age difference between two people?

Accepted Answer

Enter both birth dates in the two date fields. The tool will instantly show the exact difference in years, months, days, hours and minutes, plus the percentage of life overlap, days alive, and a fun fact like 'next birthday in X days'.

Question 2

Can I calculate the duration of an event?

Accepted Answer

Yes. Use the 'Event Duration' mode (top toggle) to enter any two dates — start and end of a project, relationship, job, subscription, etc. The result shows the total time elapsed or remaining.

Question 3

What is the most accurate way to measure years and months?

Accepted Answer

Calendar months vary in length (28-31 days), so years and months are calculated by comparing year+month components, not by dividing days by 30.44. Our tool uses the standard civil-calendar method to match the way humans count age.

Question 4

Does it account for leap years?

Accepted Answer

Yes. The total day count, hours and minutes are calculated using the actual calendar with leap years (Feb 29 every 4 years except centuries not divisible by 400). This is the same calculation your calendar app uses.