Date and time calculators

The countdown is the difference between the current moment and midnight at the start of your target date, in your device's local time.

remaining = target date 00:00 − now
days = whole days in that gap, then the leftover splits into hours, minutes and seconds

It updates once a second. If the target date has already passed, the tool says so rather than showing a negative number.

For recurring UK dates such as bank holidays, see the bank holidays page, which lists the official gov.uk dates.

Your exact age is the calendar gap between your date of birth and today.

years = whole years since birth
months = whole months since your last birthday
days = days since the last completed month
if today's day of the month is before your birth day, we borrow days from the previous month, the same way a calendar does

Total days lived is the simple count of days between the two dates. Both use your device's local time and the standard Gregorian calendar.

The total difference is the number of whole days between the two dates.

days = (to date − from date) in days
weeks = days ÷ 7
working days = days that fall Monday to Friday
years and months are the calendar gap, the same method as the age calculator

Working days here exclude Saturdays and Sundays only. UK bank holidays are not yet deducted: that uses the official gov.uk Bank Holidays API and is being wired in. For the holiday list itself, see the bank holidays page.

Each 2026 bank holiday already sits next to a weekend or can be bridged to one. The tool looks at the working days (Monday to Friday) between each bank holiday and the nearest weekend, and treats booking those days as a "bridge".

days off = the unbroken run of weekend + bank-holiday + booked days
efficiency = days off ÷ leave days spent
the tool takes the most efficient bridges first until your leave runs out

Bank-holiday dates are the official 2026 dates from gov.uk Bank Holidays for your chosen nation. Substitute days (for example when a holiday lands on a weekend) follow the gov.uk list. This is a planning guide: confirm dates with your employer before booking.

Almost all UK workers get a statutory minimum of 5.6 weeks of paid holiday a year, capped at 28 days for someone working five or more days a week.

set days: entitlement = days per week × 5.6 (capped at 28)
irregular hours: holiday accrued = hours worked × 12.07%
12.07% is 5.6 weeks ÷ (52 − 5.6 weeks), the GOV.UK method for casual and zero-hours staff

If your full-time scheme is more than the statutory 28 days, the days method uses your scheme figure pro-rata. Bank holidays can count towards the minimum, so an employer is allowed to include them. Source: GOV.UK holiday entitlement and the Working Time Regulations 1998. This is general information, not employment advice: check your contract.