Business Days From a Date

How to use

1. 1Pick a direction at the top: Add business days for a forward shift, or Subtract business days to walk backward in the calendar.
2. 2Set the start date with the date picker, or click Set to today for a one-click reset to the current local date.
3. 3Enter the number of business days to shift. Use 0 to inspect whether the start date itself is a working day.
4. 4Pick a weekend pattern. Use the standard Saturday and Sunday for most US, UK, and EU workweeks, switch to Friday and Saturday for many Middle East countries, or pick Custom to tick exactly which days are non-working.
5. 5Optionally paste a holidays list with one date per line in YYYY-MM-DD format. Labels after the date are ignored. Lines starting with # are treated as comments.
6. 6Read the headline result date, the calendar and skip breakdown, and the day-by-day trace. Use Copy summary to paste the full breakdown into a ticket, deal memo, or stakeholder email.

About this tool

Business Days From a Date answers the question that calendar arithmetic and most date pickers cannot: 'what is the date N business days from a given start date?' Pick a start date, pick a direction (add or subtract), enter the number of business days to shift, and the tool walks the calendar one day at a time, skipping weekend days and any holidays you supply, until it lands on the correct working-day result. The output panel highlights the result date with its weekday and ISO form, then breaks down how many calendar days were crossed, how many weekend days were skipped, how many holidays were skipped, and how many of those holidays already fell on a weekend (so they are not double counted). A day-by-day trace shows the first thirty calendar days color coded as working, weekend, or holiday, which makes it easy to verify the result and explain it to a colleague or stakeholder. Five weekend presets cover the standard Western Mon to Fri workweek (Saturday and Sunday off), the Sun to Thu workweek used in many Middle East countries (Friday and Saturday off), six-day workweeks with either Sunday or Friday as the single day off, no weekend at all, and a fully custom pattern where you tick exactly the days that count as non-working. The holidays list accepts one date per line in YYYY-MM-DD format with anything after the date treated as a label, so a list copied from a public holidays page, an HR document, or a payroll calendar drops in cleanly. Lines starting with # are treated as comments. Every calculation runs locally on your device using native Date arithmetic floored to local midnight, so daylight saving transitions, time zone offsets, and end-of-month edge cases never skew the result. Useful for HR managers calculating onboarding or notice-period dates, finance teams setting net-30 or net-60 due dates in business days, legal teams calculating filing deadlines and statutory response windows, contract administrators projecting SLA delivery dates, project managers forecasting milestones around holidays, customer success teams confirming response windows, recruiters scheduling next-step touchpoints, and shipping teams setting carrier-aware delivery estimates. The tool models pure business-day arithmetic; it does not include partial-day cutoffs, time-of-day shipping windows, or jurisdictional carve-outs, so always double-check critical legal or contractual dates against your local rules.

Free to use. Works in your browser. No signup, no login.