Days Between Dates
How many days lie between two dates? Enter both and the calculator counts the days — and also breaks the gap down into weeks, and into years, months and days. It does not matter which date comes first.
Your numbers
Result
- Calendar difference
- Enter both dates.
- Whole weeks
- 0
How the count works
The calculator counts the whole days from the earlier date to the later one. Order does not matter — it sorts them for you and returns a positive number. It uses the real calendar, so leap years and different month lengths are handled automatically.
Days, weeks, or calendar difference
The same gap reads three ways. Total days is exact and best for deadlines and countdowns. Weeks suit planning in seven-day blocks. The calendar difference (years, months and days) is the human-friendly version — the way you would say someone's age or how long ago something happened.
Inclusive or exclusive?
This counts the days between the two dates — the difference. If you need to include both the first and last day (as some contracts and rentals do), add one to the total. Watch for this whenever a "number of nights" and a "number of days" seem to disagree by one.
Frequently asked questions
Sources
Related calculators
Age
Work out an exact age from a birth date: years, months and days, plus the total months, weeks and days lived. Use any reference date.
CalculateDate & TimeBusiness Days
Count the business days (Monday to Friday) between two dates, and see how many weekend days fall in the range. Excludes public holidays.
CalculateDate & TimeCountdown
Count down the days, weeks and months until a future date — a holiday, birthday, deadline or event. Also shows the day of the week it lands on.
Calculate