Days Between Dates Calculator
Calculate the exact difference between any two dates.
What is Days Between Dates?
Need to know how many days until a deadline, how long ago an event occurred, or how many business days are in a period? This date calculator gives you a complete breakdown including total days, weeks, business days, and hours.
How to Use Days Between Dates
- Set the start date using the date picker (defaults to today).
- Set the end date using the second date picker (defaults to 30 days from today).
- The result updates automatically. Review the breakdown: total days, weeks, months, business days, and hours.
- Use the Swap button to reverse start and end dates, or the Today shortcut to reset either date to today.
Frequently Asked Questions
Business days exclude Saturdays and Sundays. Public holidays are not automatically excluded since they vary by country and region. You can manually adjust for holidays.
The calculator will show a negative result or display an alert depending on the date values. Use the Swap button to quickly reverse the two dates.
The month figure is an approximation (total days ÷ 30.44). For exact calendar months between two dates, note that months have different lengths, so this is always an estimate.
Yes. You can enter any two dates — past, present, or future — and the calculator will show the difference. A status badge indicates whether the end date is in the past or future.