Add the requested inputs
Use the labelled fields in the workspace above. If example values are provided, try them first or replace them with your own.
Dates & time · Free online tool
Date difference calculator
Count calendar days, weeks and weekdays between two dates.
3 guest runs per rolling 24 hours10 with a free accountPrivate inputsMobile-friendly
Date difference calculator workspace
Runs locally in your browser
Result
Total days—
Weekdays—
Weeks and days—
Calendar span—
Direction—
Date summary
Use it with confidence
How to use the date difference calculator.
Calculate and review
Use the main action when needed. Date-only values are normalised to UTC before subtraction to avoid daylight-saving hours changing the day count.
Try a worked example
Compare exclusive and inclusive counting when planning a stay, notice period or project window.
Check the assumptions
Public holidays are not assumed; add them separately when a contract requires business-day rules.
Helpful answers
Date difference calculator FAQs.
Is the date difference calculator free?
Yes. Guests receive 3 runs per rolling 24 hours, verified free accounts receive 10, and Premium subscribers receive unlimited normal use.
Does UtilHub upload or save my inputs?
No. This tool runs in your browser and UtilHub does not receive or store the values you enter. Your browser or device may still retain normal local history or form data.
How does this date difference calculator work?
Date-only values are normalised to UTC before subtraction to avoid daylight-saving hours changing the day count.
What should I check before using the result?
Public holidays are not assumed; add them separately when a contract requires business-day rules.