Time Duration Calculator
Time Duration Calculator finds the exact span between two dates and times, broken down into years, months, weeks, days, hours, minutes and seconds. The result is calendar-aware, so it correctly accounts for leap years and the actual number of days in each month rather than using flat averages. It works for anything from an age calculation to a countdown between two timestamps. Everything computes entirely in your browser, with no upload, account, or signup required.
Total: 604,800 seconds (10,080 minutes).
Frequently asked questions
Does Time Duration Calculator account for leap years?
Yes — the calculation is calendar-aware, so February 28 to March 1 counts as one day in a common year and two days in a leap year.
Can I use Time Duration Calculator as an age calculator?
Yes — enter a birth date and today’s date to get an exact age in years, months and days rather than a rounded number of years.
What units does the duration result use?
The result breaks down into years, months, weeks, days, hours, minutes and seconds, all computed from the same two date and time values.
Do month totals use a flat 30-day average?
No — month totals reflect the actual number of days in each specific month, so February and July are calculated with their real lengths, not an average.
How is Time Duration Calculator different from Timezone Converter?
Time Duration Calculator measures the elapsed time between two dates, while Timezone Converter translates the same instant in time between two different time zones without measuring any duration.