Everyday life

Date Difference Calculator

Count the days and weeks between a start date and an end date.

Enter your values

Your result

Difference between the dates

76days

Full weeks
10
Remaining days after full weeks
6
Total hours
1,824

An estimate based on your inputs. Review the assumptions and method below.

How does this calculator work?

Use the difference between dates to plan a period or measure elapsed time. Choose inclusive counting to count both the start and end dates.

The formula

Days = (end date − start date) ÷ 86400000, plus one day when inclusive counting is selected.

What should you know?

  • Includes weekends and holidays.
  • Uses calendar days without changes caused by daylight saving time.

Common questions

What happens if both dates are the same?

Elapsed time is zero days. Including both start and end dates gives one day.

Does this count working days?

No. It counts all calendar days because working days and holidays vary by country and organization.

Sources and verification

How do we choose formulas and check results?

Sources explain the method or its limits; they do not imply that the linked organizations endorse this calculator.