To count the days between two dates, enter a start and end date in the Date Difference Calculator and read the total days and weeks. It is useful for deadlines, trip planning and countdowns.
How to use the Date Difference Calculator
- Enter the start date.
- Enter the end date.
- Read the days and weeks between them.
- Adjust the dates as needed.
Worked example
From 1 January to 1 March in a non-leap year is 59 days, which is 8 weeks and 3 days.
Tips and common mistakes
- Decide whether you count both the first and last day; the calculator shows the difference between them.
- Business days exclude weekends and holidays, which this tool does not.
- Leap years add an extra day in February.
Frequently asked questions
Does it include the end date?
It gives the difference between the dates, so the end date is not counted as an extra day.
Can it count business days?
No, it counts calendar days.
Is it private?
Yes.