Date Difference Calculator
Count the days, weeks, and months between two dates.
Total days0
Years, months, days0y 0m 0d
Total weeks0
Total hours0
Total days0
Press Escape while editing a field to reset.
What is the Date Difference Calculator?
A date difference calculator counts the time between two dates. It shows the gap in years, months, and days, plus totals in days, weeks, and hours, with an option to include the end date for inclusive counts.
Formula & how it works
Difference = End date − Start dateOptionally include the end date to count both the start and end days (an inclusive range).
Example
From 1 January 2025 to 31 January 2025.
Inputs
- Start date
- 1 Jan 2025
- End date
- 31 Jan 2025
Results
- Total days
- 30 days
Enabling “include end date” would make it 31 days.
How to use this calculator
- 1Choose the start date.
- 2Choose the end date.
- 3Optionally include the end date for an inclusive count.
- 4See the difference in days, weeks, and more.
Frequently asked questions
How many days are between two dates?+
Enter both dates and the calculator shows the exact number of days, weeks, and the breakdown in years, months, and days.
What does 'include end date' do?+
It counts both the start and end dates, which adds one day. This is useful for counting inclusive date ranges.