Days Between Two Dates Calculator
Count working days, weekends, calendar days, and bank holidays between any two UK dates.
Pick two dates.
What this calculator counts
Pick a start date and an end date and the tool returns four numbers: total calendar days in the range, working days (Mon–Fri excluding bank holidays), weekend days, and bank holidays that fall on a weekday. It also lists each named bank holiday in the range.
By default both end dates are included in the count — the natural reading of “working days from Monday to Friday” is five. Switch off the inclusive toggle for an exclusive count, useful when measuring the gap between dates rather than the span containing them.
Like all calculators on this site, dates are evaluated in UTC so daylight-saving transitions never shift a result by one day. Regional bank holiday data comes from the official gov.uk feed.
When to use this
- Calculating notice period or probation end dates given two known anchors.
- Checking how many working days remain to a court or filing deadline.
- Tracking lead time on procurement and supply contracts that count in working days.
- Project planning — how many productive days really sit between two milestones after weekends and bank holidays are stripped out.
Worked examples
Worked through on the England & Wales calendar. Enter the same dates above to see the full calendar-day, weekend, and bank-holiday breakdown.
Working days in a two-week project window
A sprint runs from Monday 11 May 2026 to Friday 22 May 2026, both days included.
- Question
- How many working days is that?
- Answer
- 10 working days
- Why
- Two full working weeks with no bank holidays in between — ten clear working days across the fortnight.
A span across Easter
Counting from Monday 30 March 2026 to Friday 10 April 2026 inclusive, with Good Friday (3 April) and Easter Monday (6 April) inside the range.
- Question
- How many working days fall in the range?
- Answer
- 8 working days
- Why
- The same ten weekdays would normally give ten working days, but the two Easter bank holidays drop it lower — exactly the gap the calculator surfaces.
Clear days left until a deadline
It is Monday 1 June 2026 and a filing is due on Tuesday 30 June 2026. You want the clear working days between the two, not counting today.
- Question
- How many working days are left?
- Answer
- 20 working days
- Why
- With the inclusive toggle switched off, both ends are excluded so you see the working days genuinely available between now and the deadline.
Who uses this, and how
HR & employment
Measuring the working days in a block of annual leave, the gap between a disciplinary hearing and its outcome, or the elapsed working time on a grievance. Counting between two known dates avoids disputes about how long a process actually took.
Legal practice
Checking whether a step was taken in time by counting the working days between service and response, or between an order and a deadline. The named bank holidays in the range make it clear why a count is lower than the raw weekday total.
Payroll
Working out the working days in a part-month leaver or starter calculation, or the days between a pay cut-off and pay date. The weekend and bank-holiday breakdown helps reconcile pro-rata figures.
Project management
Counting the real productive days between two milestones once weekends and bank holidays are stripped out — usually fewer than a calendar-day gap implies, and the difference is where schedules slip.
Frequently asked questions
Does the result include the start and end dates?+
Yes by default. Toggle the "include both start and end dates" checkbox if you need to count the gap between them rather than the span containing them.
What if the end date is before the start date?+
The calculator counts the absolute number of working days between the two — the order you enter them in does not change the count.
How accurate are the bank holiday dates?+
Bank holiday data comes from the official gov.uk feed and includes substitute days (when a holiday falls at a weekend). It currently covers 2019 to 2028.
Why isn't the working-day count just calendar days divided by seven times five?+
That shortcut ignores bank holidays and breaks down whenever the range starts or ends mid-week. Counting day by day, as this tool does, is the only reliable way to get the exact figure for a specific span.
How do I count the working days left until a deadline?+
Enter today as the start date and the deadline as the end date. Switching off the inclusive toggle gives you the clear working days between now and then; leaving it on counts both ends.
Can I use this to check annual leave taken?+
Yes, for a continuous block of leave. Enter the first and last day off and the tool returns the working days in that span, which is usually how leave is deducted. If your working pattern is not Monday to Friday, treat the result as a starting point and adjust for your own days.
Does it handle a range that crosses into another year?+
Yes. The count walks every day in the range regardless of how many year boundaries it crosses, applying the correct bank holidays for each year within the supported 2019–2028 window.
What counts as a weekend day in the breakdown?+
Every Saturday and Sunday in the range, whether or not a bank holiday substitute later falls on the following Monday. Bank holidays are reported separately so you can see exactly why the working-day total is lower than the weekday total.
Is the count affected by which region I choose?+
It can be. The calendar days, weekend days, and total days stay the same, but the working-day figure drops for any region with extra holidays in the range — for example a span across early August will differ between Scotland and England & Wales because the Summer bank holiday falls on a different Monday.