Date Calculator
Work with dates two ways: find exactly how many days (and weeks, months and years) are between two dates, or add and subtract days from a date to get a new one. Great for deadlines, due dates, anniversaries and planning.
How to use the Date Calculator
- 1Choose “Difference” or “Add / subtract”.
- 2For a difference, pick a start and end date. To add or subtract, pick a date and a number of days.
- 3The result updates instantly.
Frequently asked questions
How do I count the days between two dates?+
Pick a start and end date and the calculator shows the total days, plus a breakdown in years, months and days. It uses real calendar dates, so leap years are handled.
Does the count include both the start and end day?+
It counts the number of days from the start date to the end date. To include both endpoints in a span, add one to the total.