How it works
Pick two dates to get the span as years, months and days, plus totals in weeks, days, hours, minutes and seconds, and how many of those days are weekdays (Monday to Friday).
Months are counted on the calendar: from 31 January to 28 February is 28 days, not "one month", because February has no 31st. Tick Include the end date when you want both the first and last day counted, as with hotel nights versus days of a trip.
Questions and answers
How is exact age calculated?
By counting whole years, then whole months, then remaining days from your date of birth to the chosen date, following the calendar.
How many days old am I?
Enter your date of birth; the Total days figure is your age in days. Weeks, hours and minutes are shown too.
Are leap years handled?
Yes. Dates follow the Gregorian calendar, so 29 February is counted in leap years.