Date Difference Calculator
What is a Date Difference Calculator?
A date difference calculator tells you exactly how much time lies between two dates: total days, weeks, months, years, and even the number of working days. It is handy for planning projects, counting down to events, calculating ages for benefits or eligibility, and organizing deadlines.
Pick a start date and an end date, and the calculator does the rest instantly. Working days counts only Monday to Friday, which is useful for business timelines, delivery estimates and vacation planning.
Frequently Asked Questions
How many days are between two dates?
The calculator subtracts the start date from the end date in calendar days, including weekends and holidays. Use the working days figure if you only care about weekdays, such as for business or school schedules.
Does it account for leap years?
Yes. Because the calculation uses real calendar dates, leap years (like 2024 and 2028) are handled automatically — February 29 counts as an actual day when it falls between your dates.
How do I calculate working days excluding holidays?
This calculator counts Monday through Friday as working days but does not exclude public holidays, since those vary by country and region. To exclude specific holidays, subtract them manually from the working days result.