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Deadline Calculator

Calculate working days until a deadline, skipping weekends and holidays. Great for sprint planning and contract dates.

Calendar Days
Business Days (Mon-Fri)
Work Weeks
Enter dates to calculate.

How to use the Deadline Calculator

  1. Pick your start date and deadline.

  2. Optionally select a holiday region.

  3. Read the working days count and deadline.

Working days vs calendar days

Project plans and contracts often count in business days, not calendar days — a 10-business-day turnaround spans two calendar weeks. This calculator counts working days (Monday–Friday) between any two dates, optionally skipping regional holidays, so you know your true deadline. Useful for sprint planning, contract response windows, and shipping estimates.

Key features

  • Counts workdays (Mon-Fri) between two dates
  • Optionally excludes weekends and common holidays
  • Shows both business days and calendar days
  • Set a deadline date and count backward

Frequently asked questions

Does it include weekends?

By default, weekends (Saturday and Sunday) are excluded, which is standard for business-day calculations.

Can I add custom holidays?

Currently supports US federal holidays. Custom holiday support is planned.

Is my data saved?

No. Dates are processed locally in your browser only.