Days Between Dates Calculator
Enter a start date and an end date to see how many days lie between them.
Quick answer: Days between two dates = end date minus start date. From January 1 to March 1 in a year that is not a leap year is 59 days.
How to use it
- Choose the two dates.
- The number of days appears at once, with the weeks, months and years.
- Tick the box to count both the first and the last day.
Days in each month
| Month | Days |
|---|---|
| January | 31 |
| February | 28 (29 in a leap year) |
| March | 31 |
| April | 30 |
| May | 31 |
| June | 30 |
| July | 31 |
| August | 31 |
| September | 30 |
| October | 31 |
| November | 30 |
| December | 31 |
A normal year has 365 days. A leap year has 366 and comes every four years, except for century years that are not divisible by 400. So 2028 is a leap year, and 2100 is not.
What people use it for
- Counting days to an event or deadline
- Working out a pregnancy or project length
- Checking notice periods and warranties
- Counting days between past events
- Planning trips
Questions
How many days are there between two dates?
Subtract the start date from the end date. Tick the option to include the end date if you count both days.
Does it count leap years?
Yes. It uses real calendar days.
Which is the right option for a deadline?
To count nights between dates, leave the box unticked. To count every calendar day including the last, tick it.
Is it free?
Yes. No sign-up, no install and no limit.
Is anything saved or sent?
No. Everything runs in your browser. Only your own best score, where a page shows one, is kept on your device.
Last updated 2026-10-24. Free to use, no sign-up. Made by ficklestudio26.