Shift calculators for every industry

Why pattern depends on industry

The shape of a shift rota in a given workplace is rarely arbitrary. It's driven by the operation:

• 24/7 emergency response (NHS A&E, ambulance, fire, security) — needs continuous cover with adequate rest after night runs. Tends to use 4-on-4-off, 2-2-3, or trust-specific internal rotation.
• 24/7 process operations (chemical, oil and gas, manufacturing) — needs reliable cover with predictable handovers. Tends to use DuPont, Continental, or 2-2-3.
• Peak-hours operations (retail, hospitality, contact centres) — needs heavier cover at busy times. Tends to use Earlies, Lates, Twilights, and 4-on-2-off rather than full 24/7 patterns.
• Long-distance transport (HGV, rail, aviation) — bound by sector-specific drivers'-hours regulations on top of the Working Time Regulations. Patterns vary by employer but always within those legal limits.
• Compressed-week office work (engineering, government, tech) — uses 9/80 or 4-day/10-hour patterns for hours efficiency, not for 24/7 cover.

Industry-by-industry shorthand

Healthcare — long days, nights, internal rotation, e-rostering, on-call layers. The dominant pattern in 2026 is some variant of internal long-day/night rotation, with junior doctors on contract-specific patterns and community/mental-health on earlies-and-lates. See also NHS Rota Patterns Explained.

Manufacturing — DuPont, Continental, or 2-2-3 dominate. The choice often reflects whether the operation is process (DuPont/Continental for long-stable runs) or batch (2-2-3 for flexibility). 8-hour or 12-hour shifts depending on union agreements.

Security — 4-on-4-off is the textbook pattern for door supervisors, CCTV, and static security. SIA-licensed work has additional hours and rest rules. Some events / response teams use 2-2-3.

Transport — HGV, rail, bus, taxi. Bound by drivers'-hours regulations (EU/UK Drivers' Hours Rules for HGV/PSV; Road Transport Working Time Regulations 2005 for mobile workers). The legal framework is sector-specific and stricter than general WTR in some respects.

Hospitality — split shifts, weekend rotation, zero-hours arrangements. Less likely to use formal preset patterns; more likely to use day-by-day rostering. The calculator's custom-pattern builder is the right tool for most hospitality workers.

Cross-industry: the law that covers all of you

Regardless of industry, in the UK you are covered by:

• The Working Time Regulations 1998 (and the EU Working Time Directive that they implement). 48-hour weekly average, 11-hour daily rest, 24-hour weekly rest, 5.6 weeks' paid leave.
• The Health and Safety at Work etc. Act 1974. Employer duty of care; fatigue counted as a foreseeable hazard.
• Sector-specific regulations on top, where they apply (drivers' hours, civil aviation flight-time limits, NHS contract terms, etc.).

For details, start with the Fatigue, Safety and Shift Work guide.

Where to go from here

• Pick your industry from the cards below to see a sector-tailored shift calculator.
• If your industry isn't listed, the main calculator handles every pattern we support and a custom builder for anything else.
• For the health, family, and sleep angles that apply across every industry, see our guides.