Date and time
Days Calculator
Calculate the number of days between two dates, including absolute and inclusive day counts.
Result
- Date difference
- 127days
- Inclusive days
- 128days
The end date is after the start date.
Features of the Days Calculator
Enter a start date and end date to see the date difference and the inclusive count that includes the start date. Use it for schedules, project periods, application windows, and other date ranges.
Open detailed notes
Date difference
The date difference shows how far apart two dates are. The same date is 0 days, and the next day is 1 day.
Inclusive days
Inclusive days count the start date as day 1. This style is sometimes used for application windows, stays, and work periods.
Use this when checking questions like 30 days from today, how many days a period covers, or what happens when the end date is before the start date. The calculation uses dates only and does not include times of day.
Frequently asked questions
What is the result when both dates are the same?
The date difference is 0 days. When counting inclusively, the result is 1 day.
Can the end date be before the start date?
Yes. The result shows the absolute day difference and indicates that the end date is before the start date.
Does it account for time zones or times of day?
No. The calculation is date-based and uses only the year, month, and day you enter.