EVERYDAY CLARITY
Date difference calculator
Count the calendar days between two dates, with leap years handled automatically and no timezone shift.
Your result
Days between dates
days
Result for the values shown.
Calculations run in your browser.
What to enter
| Input | Meaning and units |
|---|---|
| Start date | Use the stated Gregorian calendar date format. A calendar date is not a timezone-specific timestamp. |
| End date | Use the stated Gregorian calendar date format. A calendar date is not a timezone-specific timestamp. |
Understanding your result
Calendar results use the stated counting and anniversary convention. Complete months and years differ from fixed day counts.
Common mistakes
- Counting both end dates when the method excludes a boundary, or assuming all months have equal length.
Check your calculation
- Test a short known interval and a leap-day boundary; for working days, verify your holiday list.
How many days are there between two dates?
Enter a start and end date to find their calendar-day difference. An earlier end date gives a negative result; equal dates give zero.
Common uses
- Measure the length of a calendar interval.
- Count days until a future date.
How it works
The result is the end date minus the start date. It excludes the starting day. Equal dates produce zero; an earlier end date produces a negative count. Calendar days are counted, including weekends and holidays.
Worked example
From 28 February 2024 to 1 March 2024 there are 2 days because 2024 is a leap year.