Date Difference Calculator
Find out how many days lie between two dates, or which date you reach by adding or subtracting time.
Your data stays on your device.
Days between two dates
Add or subtract time from a date
Features
- Total days, plus years, months and days
- Weeks and number of weekdays
- Option to count the end date
- Add or subtract days, weeks, months or years
How to use Date Difference Calculator
- Enter a start date and an end date.
- Read the difference.
- Or use the second block to add or subtract time from a date.
Frequently asked questions
Is the end date included?
Not by default. From Monday to Friday of the same week is 4 days. Tick 'Count the end date too' to get 5.
How are weekdays counted?
Every Monday to Friday in the period is counted. Public holidays are not taken out, because they differ per country.
What happens when I add a month to 31 January?
You get the last day of February. When the day does not exist in the target month, the last day of that month is used.