NHS Annual Leave in Hours Explained

Your own balance may look different because of your contracted hours, shift pattern, length of service, public holiday entitlement, carried-over leave or local adjustments.

Why NHS annual leave is shown in hours

Many NHS staff do not work five identical 7.5-hour days.

You might work:

• 7.5-hour shifts
• 10-hour shifts
• 11.5-hour paid shifts
• shorter shifts
• a mixture of long and short shifts
• part-time hours
• different days each week

If annual leave were shown only in days, one “day” could represent very different amounts of working time.

Using hours makes it easier to record leave against the hours you were actually due to work.

For example, if you are normally rostered for 7h 30m, taking that shift as annual leave may use 7h 30m of leave.

If another shift is 11h 30m, taking that shift off may use 11h 30m of leave.

The number of days away from work may be the same, but the number of leave hours used is different.

NHS annual leave entitlement in hours

For a standard full-time 37.5-hour working week, the commonly used NHS Agenda for Change annual leave reference figures are:

These figures are based on a 7.5-hour standard day.

UK nations: these reference figures use the 37.5-hour standard week that applies in England. Arrangements can differ elsewhere in the UK. For example, NHS Scotland’s standard full-time week reduced to 36 hours from 1 April 2026, so the equivalent hours are lower there, and the number of general public holidays also varies between nations.

They are useful reference figures, but they do not mean every NHS employee will see exactly the same balance.

Your own entitlement may be affected by:

• part-time contracted hours
• starting or leaving part-way through the leave year
• changes in contracted hours
• carried-over leave
• public holiday allocation
• local adjustments

Why 7.5 hours is used as the standard day

A standard full-time NHS working week is commonly based on 37.5 hours.

If those hours are spread evenly across five days:

37.5 ÷ 5 = 7.5 hours

So one standard working day is 7h 30m. That is why:

• 27 days × 7.5 hours = 202.5 hours
• 29 days × 7.5 hours = 217.5 hours
• 33 days × 7.5 hours = 247.5 hours

This does not mean everyone must work 7.5-hour shifts.

It is simply the reference point used to express the standard entitlement.

How annual leave is deducted from NHS shifts

When you take annual leave, the amount deducted will usually relate to the paid hours you were expected to work.

For example:

• Normal shift: 07:30–15:30
• 30-minute unpaid break
• Paid hours: 7h 30m

If that shift is taken as annual leave, the leave deduction may be 7h 30m.

Now consider a longer shift:

• Shift: 07:00–19:00
• 30-minute unpaid break
• Paid hours: 11h 30m

Taking that shift as leave may use 11h 30m.

This is why an hourly leave balance is especially useful for staff working long or mixed shifts.

Paid shift length vs total shift time

One of the most important figures is your paid shift length.

The total time between starting and finishing is not always the same as the amount of paid working time.

For example:

• Start: 07:00
• Finish: 19:00
• Total elapsed time: 12 hours
• Unpaid break: 30 minutes
• Paid shift length: 11h 30m

So for leave calculations, the relevant shift may be 11h 30m rather than 12 hours.

Exact arrangements can differ, so check how your employer records leave if you are unsure.

What do long shifts mean for your annual leave?

A large hourly balance does not always equal a large number of shifts.

It depends on how long your normal paid shifts are.

For example:

• Annual leave balance: 92 hours
• Normal paid shift: 11.5 hours

92 ÷ 11.5 = 8

So: 92 hours = 8 full 11.5-hour shifts

Someone working 7.5-hour shifts would get a different number of shifts from the same 92-hour balance.

That is why it is often more useful to convert your leave hours into your own normal shift length rather than thinking only in days.

NHS annual leave hours and public holidays

Annual leave and public or bank holiday entitlement are commonly treated as separate parts of the overall NHS leave package.

For a full-time worker in England using the standard 7.5-hour day:

8 public holidays × 7.5 hours = 60 hours

However, how these hours are shown can vary.

Your employer’s system may display:

• annual leave separately
• public holiday hours separately
• a combined balance
• adjusted public holiday hours based on your working pattern

This can be particularly important for part-time staff or people whose normal working days fall differently across the week.

If your balance looks different from the headline annual leave figures, check whether public holiday hours are being shown separately or included elsewhere.

Why your NHS annual leave balance may look different

It is completely possible for your leave balance not to match the standard 202.5, 217.5 or 247.5-hour figures.

Common reasons include:

You work part-time

Part-time entitlement is generally adjusted in proportion to contracted hours.

You work long or irregular shifts

Your entitlement may still originate from the same overall annual leave rules, but the way leave is used against your rota can look very different.

Public holidays are shown separately

Your main annual leave balance may not include public holiday hours.

You have carried-over leave

Unused leave from a previous leave year may have been added to the new balance.

Your contracted hours changed

A change in working hours during the year may result in an adjustment.

You started part-way through the leave year

Your entitlement may be calculated only for the portion of the year you are employed.

A manual adjustment has been made

HR or payroll may have applied a correction or amendment.

Part-time NHS annual leave

Part-time NHS staff generally receive annual leave on a pro-rata basis.

That means the entitlement is adjusted according to the working pattern rather than simply giving every employee the same number of hours.

For example, someone working 20 hours per week would not normally receive the same hourly allowance as someone working 37.5 hours per week.

The detailed calculation can depend on contracted hours and local arrangements.

For a more detailed explanation, see NHS Part-Time Annual Leave in Hours.

Understanding the balance shown in ESR or your trust system

Your leave system, whether that is ESR (the Electronic Staff Record) or your trust’s own system, may show several different figures.

These can include:

• entitlement
• taken
• booked
• remaining
• carried over
• public holiday hours
• adjustments

The wording may differ between trusts or systems.

For example, one system may show booked leave as already deducted from your remaining balance. Another may list booked leave separately.

Before doing your own calculation, check what the displayed balance actually represents.

This helps avoid subtracting booked leave twice. See Holiday Taken, Booked and Remaining Explained.

How to convert NHS annual leave hours into shifts

Once you know your current leave balance, you can convert it into your normal paid shifts.

For example:

• Leave balance: 86h 15m
• Paid shift: 7h 30m

First convert the figures: 86h 15m = 86.25 hours and 7h 30m = 7.5 hours.

Then:

86.25 ÷ 7.5 = 11.5 shifts

So the balance represents 11 full shifts + half a shift.

If your shift length is 7h 30m, half a shift is 3h 45m.

So the practical result is: 11 full shifts + 3h 45m

Use the Hundred Hour Holiday Hours to Shifts Calculator to do this automatically.

Common mistakes with NHS annual leave hours

Assuming 27 days always means 27 of your own shifts

Not necessarily. The 27-day figure is based on a standard 7.5-hour day. If you work longer shifts, your number of actual shifts may be lower.

Using total shift time instead of paid hours

If your shift includes an unpaid break, the paid shift length may be shorter than the total time between start and finish.

Comparing part-time and full-time balances directly

A part-time worker’s balance will normally be lower because the entitlement is adjusted to their contracted hours.

Forgetting public holiday entitlement

Public holiday hours may be shown separately from annual leave.

Confusing entitlement with remaining balance

Your full annual entitlement and your current remaining balance are not the same thing.

Assuming every NHS trust displays leave in exactly the same way

Systems and local processes can vary, even where the underlying entitlement rules are the same.