Add the requested inputs
Use the labelled fields in the workspace above. If example values are provided, try them first or replace them with your own.
Dates & time · Free online tool
Deadline calculator
Add or subtract calendar or working days from a starting date.
3 guest runs per rolling 24 hours10 with a free accountPrivate inputsMobile-friendly
Deadline calculator workspace
Runs locally in your browser
Result
Deadline—
Weekday—
Calendar time elapsed—
Deadline summary
Use it with confidence
How to use the deadline calculator.
Calculate and review
Use the main action when needed. Calendar mode shifts the date directly; working-day mode advances one day at a time and ignores weekends.
Try a worked example
Add ten working days to a Monday while skipping Saturdays and Sundays.
Check the assumptions
Bank holidays and organisation closures vary by place and year and are not added unless you account for them.
Helpful answers
Deadline calculator FAQs.
Is the deadline calculator free?
Yes. Guests receive 3 runs per rolling 24 hours, verified free accounts receive 10, and Premium subscribers receive unlimited normal use.
Does UtilHub upload or save my inputs?
No. This tool runs in your browser and UtilHub does not receive or store the values you enter. Your browser or device may still retain normal local history or form data.
How does this deadline calculator work?
Calendar mode shifts the date directly; working-day mode advances one day at a time and ignores weekends.
What should I check before using the result?
Bank holidays and organisation closures vary by place and year and are not added unless you account for them.