Date Calculator
Find exactly how many days, weeks, months and years are between two dates — including business days — or add and subtract days from any date to see which day it lands on.
Pick your dates
Results update instantly.
Everything is calculated in your browser — nothing is uploaded.
How to count days and business days between dates
The difference between two dates is counted in calendar days; weeks are days divided by 7. A business-day count that skips weekends is also shown.
- Calendar days: every day between the two dates is counted.
- Business days: Saturdays and Sundays are excluded (public holidays are not removed in this version).
- Add or subtract days from any date to find the resulting date and weekday.
Date calculator FAQ
How do I find the days between two dates?
Just pick both dates; the tool instantly shows calendar days, weeks, a years/months/days breakdown and the business-day count.
How are business days counted?
Saturdays and Sundays between the two dates are removed; the remaining days are business days. Public holidays are not deducted in this version.
Are public holidays excluded?
No. Because holiday lists change every year and by country, this version only excludes weekends, and the page states this clearly.
How do I find a date 90 days from now?
Use the add/subtract tab, enter the date and the number of days; the tool returns the resulting date and weekday.
How many days until a date?
Enter today and the target date to see the number of days between them; a negative result means the date is in the past.
Is anything stored?
No — all calculations run in your browser and no dates are uploaded.