Work out the exact gap between two ages
'Born March '88 and June '91' is not instantly a number. Birthdates in, calendar-exact difference out.
Tools used in this guide
The job
Age gaps count like birthdays do: years, then whole months, then leftover days. A plain day-count ignores months entirely — this tool reports both the calendar breakdown and the raw totals.
Two dates
Enter the two birthdates in any order. The result names the older person, the years–months–days gap, and the totals in days and weeks.
Worked example
March 12, 1988 vs June 5, 1991: 3 years, 2 months, 24 days — the second person is younger. That is 1,180 days or ~168.6 weeks: enough to settle a 'who is older and by how much' debate.
Where it stops
Calendar arithmetic only — it does not adjust for different local birth times or time zones. Same-date inputs return zero gap with 'same date' rather than an error.