Date Duration Calculator
Days between two dates, working days with UK bank holidays taken off, “what date is 10 working days from now”, ages and countdowns — each answer comes with the counting spelled out in plain English. Nothing leaves your machine.
When would I use this?
Working out a notice period, counting the working days left before a deadline, checking when “payment due within 30 days” actually lands, or settling how old something (or someone) is to the day. Pick what you’re counting, choose your dates, and the answer appears as you type — total days, working days with England & Wales bank holidays taken off if you want, and every step of the counting written out in plain English so you can paste the working straight into an email. Nothing is uploaded anywhere; it all happens on your computer.
01 What are you counting?
02 Answer & counting
Pick your dates above and the answer appears here as you type — no Calculate button needed.