Date Calculator & Business Days Counter
Versatile calendar computation tool. Add or subtract any combination of years, months, weeks, and days from a start date, with optional Monday–Friday business days filtering. Or calculate the exact duration between two dates, including calendar days, weekdays, and weekend days.
Date Calculator & Days Counter
Add or subtract years, months, weeks, days, and working business days to any date, or count exact days between dates.
Date Math Parameters
How to Use Date Calculator & Business Days Counter
Select Calculator Mode
Choose "Add / Subtract from a Date" or "Days Between Two Dates".
Input Dates & Increments
Set your starting date, operational direction (+ or -), and duration increments.
View Result Date or Day Count
Inspect the resulting formatted calendar date, day of week, or breakdown of weekdays vs weekend days.
Frequently Asked Questions
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