Question 1

How is my exact age calculated?

Accepted Answer

Complete years first, then complete months, then the remaining days — counted on the real calendar, with its 28-to-31-day months and leap years. Total days come from the exact difference between the two dates, never from multiplying years by 365.

Question 2

What day of the week was I born?

Accepted Answer

Read straight from your birth date in your device's local time. Many online calculators parse the date as UTC midnight, which shifts the weekday by a day for anyone west of Greenwich — this one doesn't.

Question 3

I was born on February 29. When is my birthday?

Accepted Answer

In non-leap years your birthday is observed on March 1 — the standard legal convention — and the countdown follows it.

Question 4

Does my birth date leave my device?

Accepted Answer

No. Every number on this page is computed in your browser. The share link carries only the date itself, for the recipient's browser to recompute — no server, no database, no tracking.

Question 5

Why do two calculators sometimes disagree?

Accepted Answer

Usually month-end handling: Jan 31 to Feb 28 counts here as one full month (the end-of-month convention), while a naive day-count calls it 28 days. Both are defensible; this calculator documents its convention.

Question 6

Can I find my age on a past or future date?

Accepted Answer

Yes. The Age at date tab computes your exact age on any date, past or future, and the Between dates tab measures the span between any two dates in years, months, days and more.

Age Calculator

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