Calculate Duration Between Two Dates
This calculator calculates the duration, which is the day count and the number of days, months and years between two dates. Among other things, it can be used to find how many days old you are and the weekday you were born. Also see the advanced duration calculator which includes time as well.
Help and Example Use
- Time and Date Duration – Calculate duration, with both date and time included
- Date Calculator – Add or subtract days, months, years
- Weekday Calculator – What Day is this Date?
- Birthday Calculator – Find when you are 1 billion seconds old
- Week Number Calculator – Find the week number for any date