Days Between Dates Calculator
Find how many days are between two dates free. Enter a start and end date to see the difference in days, weeks and months instantly. No signup, everything runs in your browser.
Your result will appear here
Time between the dates
Days are counted as whole calendar days between the two dates (the end date minus the start date). Weeks are days ÷ 7 and months are days ÷ 30.44, the average month length.
How to use
- Pick the start date.
- Pick the end date.
- Click Calculate Difference to see the gap in days, weeks and months.
Frequently asked questions
Does the count include the end date?
No — the result is the number of whole days from the start date to the end date, so 1 January to 31 January is 30 days, not 31. If you want to include both end dates, add 1 to the result.
What if the end date is before the start date?
The calculator swaps the dates for you and still gives the positive difference, so the order does not matter.
How are months calculated?
Months are approximate: total days divided by 30.44, the average length of a month. Because real months are 28–31 days, the month figure is a guide, not an exact calendar count.
Can I use this to count down to an event?
Yes — set the start date to today and the end date to the event date. The day count tells you exactly how many days are left.