Date Difference

Calculate the days between two dates

Include end date

Frequently Asked Questions

What does Date Difference calculate?

Date Difference calculates the number of days between two dates. You can view the result in days, weeks, or approximate months.

Is this the same as "days between dates"?

Yes! Date Difference and "days between dates" are the same thing. This tool counts the number of days from your start date to your end date.

What does "Include end date" mean?

When "Include end date" is turned on, the end date counts as a full day. For example, January 1 to January 3 would be 3 days instead of 2 days.

Why can results differ by one day on some tools?

Some date calculators include both the start and end dates, while others only count the days in between. Use the "Include end date" toggle to match your preferred counting method.

Does it handle leap years?

Yes, the calculator uses JavaScript's built-in Date object which correctly handles leap years and varying month lengths.

What timezone does it use?

The calculator uses your browser's local timezone. All dates are treated as local dates at midnight.

Can I copy or share the result?

Yes! Click the "Copy result" button to copy a formatted summary to your clipboard that you can paste anywhere.

Does it work on mobile?

Yes, the Date Difference calculator is fully responsive and works on all devices including smartphones and tablets.