WTD Smart Calculator

HGV Working Time Directive Calculator UK — Reality Behind Your Working Hours

HGV Working Time Directive Calculator UK is not just a simple time-check tool — it is a compliance system designed to help drivers understand whether they are operating legally or unknowingly crossing dangerous limits.

Most drivers believe they are safe because they follow tachograph rules. But the reality is different. The Working Time Directive tracks your total working time, not just driving — including loading, waiting, and admin tasks.

⚠️ Many drivers break the law without realising it — simply because they never calculate their real working time correctly.

This is where the HGV Working Time Directive Calculator UK becomes essential.

It removes guesswork and gives you instant clarity on your daily hours, weekly limits, and night work compliance — so you stay legal and protected.

WTD Calculator — HGV Driver Hub

WTD Calculator — HGV Driver Hub

Working Time Directive calculator for professional HGV drivers in the UK.
Check your weekly hours, night work and break compliance instantly.

Daily Working Time Check

WTD working time includes: driving + loading/unloading + admin + waiting time when required to be at your post. It does NOT include: breaks, rest periods, or time when you are free to use as you wish.
When you started work (not break)
When you finished work
Total unpaid break — not counted as working time
Longest period without taking a break

Weekly Working Time Check

Under WTD, maximum working time is 60 hours in any single week. Average over 17 weeks must not exceed 48 hours. Enter your working hours for each day this week (excluding breaks).
Days where shift includes 00:00–04:00
Average working hours on night shifts

17-Week Reference Period Calculator

The WTD 48-hour average is calculated over a 17-week reference period. You can work more than 48h in some weeks as long as the average across all 17 weeks does not exceed 48h. Enter weekly totals for each week of your reference period.

What is the Working Time Directive (WTD)?

The Working Time Directive (WTD) is separate from the EU/UK Drivers Hours rules. It limits the total amount of time a worker can work — not just drive. For mobile workers like HGV drivers, specific WTD rules apply that are different from office-based workers.

Rule 1 — Maximum weekly working time: 60 hours

A mobile worker (HGV driver) must not work more than 60 hours in any single week. This includes ALL working time — driving, loading, unloading, admin, waiting when required to be at post.

Example: Monday 10h + Tuesday 10h + Wednesday 10h + Thursday 10h + Friday 10h + Saturday 10h = 60h — this is the absolute maximum for one week.

Rule 2 — 17-week average: maximum 48 hours

Over any rolling 17-week reference period, the average working time must not exceed 48 hours per week. You can work more than 48h in some weeks as long as quieter weeks bring the average down.

Example: 10 weeks at 55h + 7 weeks at 35h = 550 + 245 = 795h total ÷ 17 = 46.8h average — this is compliant (under 48h).

Rule 3 — Night work: maximum 10 hours

If a driver works during the night period (defined as any period between 00:00 and 04:00), the total working time on that day must not exceed 10 hours. This limit applies on each day that includes night working.

Example: A driver starts at 23:00 and works until 09:00 — this shift includes the night period (00:00–04:00) so total working time (excluding breaks) must not exceed 10 hours.

Rule 4 — Breaks during working time

Under WTD, mobile workers must take breaks as follows:

— After 6 hours of work: at least 30 minutes break required

— After 9 hours of work: at least 45 minutes break required (the additional 15 minutes on top of the 30)

Breaks can be split into periods of at least 15 minutes each.

Example: Driver works 6 hours → must take 30 min break. If they continue to 9 hours total → must take a further 15 min (total 45 min across the day).

Rule 5 — What counts as working time?

INCLUDED in working time: driving, loading/unloading, vehicle checks, admin, training, waiting time when required to be at your post, time spent at a customer’s premises.

NOT included: rest breaks, daily rest periods, time when you are free to use as you wish (even if in the cab).

Important: If a driver is waiting at a loading bay and cannot leave, this waiting time counts as working time under WTD — even if they are not driving.

Rule 6 — WTD vs Drivers Hours — key difference

Drivers Hours rules (EU/UK) limit DRIVING time. WTD limits TOTAL WORKING time. Both sets of rules apply simultaneously — a driver must comply with both at all times.

A driver could be within their Drivers Hours limit for driving but still breach WTD if their total working time (driving + other duties) exceeds the WTD limits.

Rule 7 — Penalties for WTD breaches

WTD is enforced by DVSA at roadside checks and by HMRC for the 48-hour average. Operators can face improvement notices, prohibition notices and prosecution. Drivers can face fines. Records must be kept by operators for at least 2 years.

DVSA officers check WTD compliance during roadside inspections using tachograph data. Operators who repeatedly breach WTD risk losing their Operators Licence.

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