Date Difference Calculator
Calculate the exact time between two dates in years, months, days, and total units.
Formula
Calendar-aware difference accounting for varying month lengths and leap years
Tips
- The years/months/days breakdown is calendar-aware — it accounts for months of different lengths and for leap years.
- The weekday count excludes Saturdays and Sundays but not public holidays, which vary by country.
Frequently asked questions
Why do the months not simply equal days ÷ 30?
Months vary from 28 to 31 days. This tool walks the calendar rather than assuming an average month length, so the breakdown matches how people actually count dates.