Time Between Dates Calculator
Calculate the exact time between any two dates with our comprehensive UK date calculator. Find days, weeks, months, and years - with options for working days excluding UK bank holidays.
Calculate Time Between Two Dates
Calculate Working Days (Excluding Weekends & Bank Holidays)
Add or Subtract Days from a Date
Calculate Precise Time Including Hours & Minutes
UK Bank Holidays 2025
Our working days calculator automatically accounts for these UK bank holidays:
| Holiday | Date | Day |
|---|---|---|
| New Year's Day | 1 January 2025 | Wednesday |
| Good Friday | 18 April 2025 | Friday |
| Easter Monday | 21 April 2025 | Monday |
| Early May Bank Holiday | 5 May 2025 | Monday |
| Spring Bank Holiday | 26 May 2025 | Monday |
| Summer Bank Holiday | 25 August 2025 | Monday |
| Christmas Day | 25 December 2025 | Thursday |
| Boxing Day | 26 December 2025 | Friday |
Note: Scotland and Northern Ireland have additional bank holidays. Select your region for accurate calculations.
Tips for Date Calculations
- Age calculations: Enter birth date as "From" and today as "To" for exact age in years, months, and days
- Project deadlines: Use the Add Days feature with "Working Days" to account for weekends and holidays
- Notice periods: UK employment notice periods are typically in weeks (1-12 weeks) - use our calculator to find the exact end date
- Rental agreements: Calculate exact tenancy durations for deposits, renewals, or break clauses
- Pregnancy due dates: Add 280 days (40 weeks) from the first day of your last menstrual period
- Visa expiry: Track exactly how many days remain before your UK visa expires
- Tax year: UK tax year runs 6 April to 5 April - calculate your tax year periods accurately
Common Date Calculation Mistakes
- Date format confusion: UK uses DD/MM/YYYY, not MM/DD/YYYY - 5/3/2025 means 5th March in UK!
- Forgetting bank holidays: A "30 working days" deadline excludes 8+ bank holidays per year
- Including vs excluding end date: "From Monday to Friday" is 4 or 5 days depending on interpretation
- Leap years: February 2024 had 29 days - always verify when spanning February dates
- Regional differences: Scotland has different bank holidays (2nd January, St Andrew's Day)
- Notice period starts: Employment notice typically starts the day after it's given, not the same day
- Weekend adjustments: If a bank holiday falls on a weekend, the substitute day is usually the following Monday
How Date Calculations Work
Calendar Days
Calendar days count every single day between two dates, including weekends. The formula is simply:
Working Days (Business Days)
Working days exclude weekends and optionally bank holidays. The calculation:
Years, Months, and Days Breakdown
To get an exact breakdown, we:
- Calculate full years between dates
- Calculate remaining full months
- Calculate remaining days
This handles varying month lengths (28-31 days) and leap years correctly.
UK Working Days Per Year
A typical UK working year:
- 365 days per year (366 in leap years)
- Minus ~104 weekend days (52 weeks × 2 days)
- Minus 8 bank holidays (England & Wales)
- = ~252-253 working days
Frequently Asked Questions
Enter your start date and end date in our Date Difference calculator. It will instantly show the total days, weeks, months, and years between the dates, including a breakdown of exact years, months, and days. You can also choose whether to include the end date in the count.
Yes! Our Working Days mode excludes all UK bank holidays. We support different regions:
- England & Wales: 8 bank holidays (New Year's, Good Friday, Easter Monday, May Day, Spring, Summer, Christmas, Boxing Day)
- Scotland: Includes 2nd January and St Andrew's Day (30 November)
- Northern Ireland: Includes St Patrick's Day (17 March) and Battle of the Boyne (12 July)
Calendar days include every day - Monday through Sunday. There are 365 calendar days in a year (366 in leap years).
Working days (also called business days) typically exclude weekends and public holidays. In the UK, this is usually Monday to Friday, minus the 8 standard bank holidays. There are approximately 252 working days in a UK year.
Use our "Add/Subtract Days" mode:
- Enter your starting date
- Select "Add" for future dates or "Subtract" for past dates
- Enter the number of days
- Choose "Calendar Days" or "Working Days"
- Click Calculate to see your deadline date
For business deadlines (e.g., "respond within 10 working days"), select "Working Days" to automatically skip weekends and bank holidays.
A typical UK year has approximately 252 working days:
- 365 total days (or 366 in a leap year)
- Minus 104 weekend days (52 Saturdays + 52 Sundays)
- Minus 8 bank holidays (for England & Wales)
- = 253 working days (or 252 depending on how bank holidays fall)
Scotland and Northern Ireland have 9-10 bank holidays, so slightly fewer working days.
The UK uses DD/MM/YYYY format (day/month/year). Examples:
- 25th December 2025 → 25/12/2025
- 5th March 2025 → 05/03/2025
- 1st January 2025 → 01/01/2025
This differs from the US format (MM/DD/YYYY). Be careful when reading dates: 03/05/2025 means 3rd May in the UK but 5th March in the US!
To calculate exact age:
- Go to "Date Difference" mode
- Enter the birth date as "From Date"
- Enter today's date as "To Date" (or use the "Today" quick button)
- Click Calculate
You'll see the exact age in years, months, and days, plus total days lived. This is useful for official documents, milestone celebrations, or age-restricted services.
Yes! Use our "Precise Time" mode to enter both dates with times. This calculates the exact difference including:
- Years, months, and days
- Hours, minutes, and seconds
- Total hours and total minutes between the moments
This is useful for tracking time-sensitive events, flight durations, or precise age calculations.
Pro Tips for Accurate Results
- Double-check your input values before calculating
- Use the correct unit format (metric or imperial)
- For complex calculations, break them into smaller steps
- Bookmark this page for quick future access
Understanding Your Results
Our Time Between Dates Calculator provides:
- Instant calculations - Results appear immediately
- Accurate formulas - Based on official UK standards
- Clear explanations - Understand how results are derived
- 2025/26 updated - Using current rates and regulations
Common Questions
Is this calculator free?
Yes, all our calculators are 100% free to use with no registration required.
Are the results accurate?
Our calculators use verified formulas and are regularly updated for accuracy.
Can I use this on mobile?
Yes, all calculators are fully responsive and work on any device.