Productivity · Free tool
Deadline Calculator
Add business days or working hours to a start date and get the actual deadline — holidays excluded.
Updated April 2026
Deadline date
May 6, 2026
Day of week
Wednesday
What it does
Add business days or working hours to a start date and get the real-world deadline — weekends and US federal holidays excluded. Useful for project timelines, SLA calculations, and contract deadlines that say "within 10 business days".
Pair with date difference calculator, time duration calculator, countdown timer, and public holidays.
How to use it
- Pick the start date.
- Enter business days or working hours to add.
- Optionally include US federal holidays.
- Read the resulting deadline.