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Date & Time
Date Difference Calculator
The gap between two dates is usually wanted in several units at once: whole days for a countdown, weeks for a pregnancy, months for a contract. This calculator returns all of them from the same pair of dates.
How it works
Start date
End date
Include the end day
Days
Weeks
Months
Years
Weekdays (MonโFri)
Hours
Frequently asked questions
How do I use the Date Difference Calculator?
Fill in the fields above โ the result recalculates instantly as you type. Everything runs in your browser, so the values you enter are never collected or stored.
Is this calculator free?
Yes. It is completely free, requires no account, and works on phones, tablets and desktops.