Date and time
Date difference
Count days between dates and see the calendar duration.
Your numbers
Both a decimal point and a comma work.
Result
31
Days
- Weeks
- 4.428571
- Years
- 0
- Months
- 1
- Remaining days
- 0
How it works
Days = end − start (+1 if inclusive)
Using the calculator
Enter: Start date · End date · Include end date. Calculation: Days = end − start (+1 if inclusive).
Worked input and result
Example: Start date = 2026-03-01; End date = 2026-04-01; Include end date = No. Result: Days = 31 (Weeks: 4.428571; Years: 0).
Understanding the result
The same dates give 0 days with the end date excluded, or 1 day when included. Calendar years, months and remaining days are shown separately. Time zones do not affect calendar-day counting.
Check whether the ending date should be included. An interval measured as elapsed days and a count of calendar dates can differ by one day.