Date difference calculator
Find the number of days between two dates.
Counting days between dates
Choose a start date and an end date. The usual difference does not count the starting date. Turn on include end date to count both dates.
Example: January 1 to January 3
The difference is 2 days, or 3 days when the end date is included. Weeks express the same duration divided by 7. This is a calendar-day calculation, not a business-day or holiday calculation.