You’re a retail manager. Your contract says you work five days a week, but your rota includes every Saturday. A colleague insists Saturday shouldn’t count as a “working day” for holiday calculations. Another employee claims they should get paid extra for weekend shifts. Everyone has a different opinion, but nobody knows the actual answer. 

This confusion is common across UK workplaces. Unlike countries with codified working time laws, the UK takes a contract-led approach. What counts as a working day depends on your specific employment agreement, industry practice, and the context in which the term is used. 

This guide explains everything you need to know about UK working days, including whether Saturday is classed as a working day, how weekend laws in the UK apply, and your rights when working Saturdays. 

What Are Working Days in the UK?

The term “working day” has no single legal definition in UK law. Its meaning depends on the context. However, understanding the various interpretations is essential for both employers and employees. 

The Contractual Definition

Most employment contracts define working days as Monday to Friday, excluding bank holidays. This is the default position in office-based and professional roles, where the working week is typically 9:00 AM to 5:00 PM, Monday to Friday. 

In such contracts, Saturday, Sunday, and bank holidays are not considered working days. Holiday entitlement, notice periods, and contractual deadlines are typically calculated on this basis. 

The Statutory Definition

For statutory purposes, such as calculating notice periods or statutory payments, working days are all days of the week except Sundays, bank holidays, and public holidays. This definition is used in the Working Time Regulations 1998 and other employment legislation, where “working days” mean “all days other than Sunday, bank holidays, and public holidays.” 

Under this definition, Saturday is a working day for statutory purposes, because it is not a Sunday or bank holiday. This is important when calculating things like notice periods for termination of employment. 

The Business Days Definition

In financial and commercial contexts, “business days” are defined as Monday to Friday, excluding bank holidays. This definition applies to banking, legal contracts, and commercial transactions. 

For example, if a contract states payment is due within “5 business days,” weekends and bank holidays are excluded from the calculation. A payment due on a Friday would be due the following Friday (assuming no intervening bank holidays). 

The Sector-Specific Definition

In retail, hospitality, healthcare, security, and manufacturing, the working week may include Saturday and Sunday as standard working days. 

When your contract states your working days include Saturdays, then Saturday is a working day for your employment, regardless of the general Monday-to-Friday default. 

Is Saturday a Working Day in the UK?

The short answer is: it depends. Unlike many European countries where Saturday is universally a working day, UK law leaves the classification of Saturdays to individual employment contracts, industry practices, and contexts. This is where confusion often arises, so it’s worth exploring the different scenarios. 

For Employment Contracts

Whether Saturday counts as a working day depends on your contract. 

Most full-time office contracts define “working days” as Monday to Friday. Your contract will usually state something like: “Your normal working hours are 9:00 AM to 5:30 PM, Monday to Friday.” In this case, Saturday is not a working day. Holiday requests are counted in days, typically based on Monday to Friday. 

However, if your contract specifies Saturday as part of your working week, then Saturday is a working day for you. This applies to many shift-based roles in: 

• Retail – Saturday is the busiest trading day.
• Hospitality – Restaurants, bars, and hotels are busiest on weekends. 
• Healthcare – Hospitals and care homes require 24/7 staffing. 
• Security – Round-the-clock protection services. 
• Manufacturing – Production lines often run weekends.

For Calculating Holiday Entitlement 

Holiday entitlement calculations may include Saturdays if you regularly work Saturdays. 

The standard UK holiday entitlement is 5.6 weeks (28 days for a full-time worker). However, if you work part-time or have non-standard working days, your holiday is calculated pro-rata. If you regularly work Saturdays, these are included as “working days” for holiday calculations. 

For workers with variable shift patterns, the calculation uses an average of hours worked over the previous 52 weeks. 

For Notice Periods 

In statutory terms, Saturdays count as working days. 

For notice periods—whether for resignation, termination, or redundancy—the statutory definition applies. Saturdays (but not Sundays or bank holidays) are classed as working days. For example, if an employee is given one week’s notice on a Friday, that week would include the following Saturday and Monday, but not the next Sunday. 

For Employer Policies and Unauthorised Absence

Your employer’s attendance policy determines how Saturdays are treated.

Some employers count Saturday as part of the working week for attendance purposes. Others use Monday-to-Friday as the primary working week, with Saturday treated as overtime. This distinction can affect: 

• Statutory Sick Pay (SSP) calculations 
• Sickness absence recording 
• Unpaid leave deductions 
• Disciplinary actions for unauthorised absence 

Always check your employee handbook or contract for specific rules. 

For Statutory Payments

Employers must pay statutory payments (such as SSP) for all days of the week, including weekends, if they are days the employee would normally have worked. 

For example, if an employee normally works Saturdays and falls sick, their Statutory Sick Pay (SSP) must include Saturday as a qualifying day. This is because it is a day they would normally be working. 

What Are “Business Days” in the UK? 

A business day is not the same as a working day. These terms are often used interchangeably but have different meanings. In the UK, business days are generally defined as Monday to Friday, excluding bank holidays and public holidays. 

Why Business Days Matter

The definition of business days is important for various purposes: 

Examples of Business Days 

• If you need to respond within 3 business days and you receive a notice on a Friday, your response is due by the following Wednesday. 
• If a payment is due within 5 business days of an invoice date on a Monday, it is due the following Monday.

Employee Rights When Working Saturdays 

If your contract includes Saturday as a working day, you retain all the same legal protections as any other employee. Your employer cannot bypass employment law simply because you work weekends. 

Right to Rest Breaks 

Workers are entitled to a 20-minute uninterrupted break if their shift exceeds 6 hours. This applies to Saturday shifts just as it does to weekday shifts. 

Right to Daily and Weekly Rest 

The Working Time Regulations 1998 guarantee: 

• 11 hours consecutive rest in any 24-hour period 
• 24 hours uninterrupted rest in any 7-day period (or 48 hours in 14 days) 

These rights apply to Saturday workers as much as Monday-to-Friday workers. If you work a Saturday after working the previous day, your employer must ensure you have adequate rest between shifts. 

Right to Paid Holiday 

All workers, including Saturday-only staff, are entitled to 5.6 weeks of paid annual leave (pro-rata for part-time staff). The holiday year, leave entitlement, and payment are calculated based on the employee’s contractual hours, including any Saturday work. 

Right to Statutory Sick Pay 

Statutory Sick Pay (SSP) covers all employees, regardless of the days they work. If you normally work Saturdays and fall sick, your SSP is calculated based on your normal working pattern, including those Saturdays. 

Right to Notice and Redundancy Pay 

Employees are entitled to notice periods and redundancy pay, regardless of their working pattern. If you work Saturdays, these entitlements are calculated based on your total hours and length of service. 

Protection from Unfair Treatment 

Employees working Saturdays are protected from unfair treatment under the Equality Act 2010. If the Saturday rota is allocated on the basis of age, gender, race, disability, religion, or any other protected characteristic, this could constitute unlawful discrimination. 

Premium Pay for Saturday Work 

There is no legal right to premium pay for Saturday work in the UK. 

Unlike some countries, UK law does not require employers to pay extra for working on Saturdays or Sundays. Payment for weekend work is determined by the employment contract. Some employers offer enhanced rates as a benefit, but this is discretionary and not legally required. 

The Employment Rights Act 2025 

The Employment Rights Act 2025, which came into effect in 2026, introduced new protections for workers on zero-hours contracts. Key changes include: 

• Requirement to offer guaranteed hours after a period of regular hours. 
• Reasonable notice of shift changes. 
• Restrictions on exclusivity clauses. 

This legislation may indirectly affect how weekends, including Saturdays, are scheduled and worked by zero-hours staff. 

Common Scenarios: Is Saturday a Working Day?

What the Law Does Not Require 

Understanding what the law does not require is as important as knowing your rights: 

No Legal Right to Premium Pay 

UK law does not require premium pay for Saturday work. Your employer is not legally obliged to pay time-and-a-half, double time, or any enhanced rate for weekend work unless your contract states otherwise. The only requirement is that your pay, including any Saturday work, does not fall below the National Minimum Wage when averaged over the pay reference period. 

No Automatic Right to a Weekend-Free Rota 

Employers can require staff to work weekends if this is in the employment contract or if the business needs justify it. If the rota is discriminatory (e.g., assigning all weekend work to younger staff without justification), this could be unlawful. Employees can request a reasonable adjustment, such as not working certain Saturdays for childcare or religious reasons, and employers must consider these requests fairly. 

Best Practices for Employers 

To avoid disputes over Saturday working: 

1. Define working days clearly in contracts: Specify exactly what constitutes a working day for each role. 
2. Separate rota patterns from contractual terms: Ensure rotas align with contract provisions. 
3. Be consistent: Apply the same working-day rules to all employees performing similar roles. 
4. Document variations: If an employee’s working pattern changes, update their contract. 
5. Consider enhanced pay for weekend work: While not required, premium pay can aid recruitment and retention.

Conclusion

Saturday is classed as a working day only if your employment contract or normal working pattern includes it. There is no universal rule in UK employment law automatically designating Saturday as a working day. Contractual definitions, statutory definitions, and business-day definitions vary significantly, making it essential for both employers and employees to check the specifics of their agreements and contexts. 

If you work Saturdays, you retain all the same legal rights, including rest breaks, paid holiday, and notice periods, that you have on weekdays. However, there is no legal right to premium pay for Saturday work unless specified in your contract. 

For employers, clarity in employment contracts, consistent application of policies, and a clear distinction between rota requirements and working-day definitions are essential to avoiding disputes. 

How Smart Workforce Helps Manage Weekend Working

Managing Saturday and weekend working across a shift-based workforce is complex—especially when your team includes employees on different contracts, different rota patterns, and different expectations about what counts as a “working day.”

Smart Workforce simplifies this by allowing you to: 

• Set custom working day definitions by contract type 
• Track time and attendance across all seven days 
• Monitor compliance with Working Time Regulations (rest breaks, 48-hour week) 
• Manage holiday entitlement calculations based on actual working patterns 

Whether you manage a retail team, a security operation, or a care home, Smart Workforce helps you stay compliant while maintaining operational efficiency. 

Discover How Smart Workforce Simplifies Shift Management – Book a Demo Today 

Frequently Asked Questions

What are working days in the UK? 

For most contractual purposes, Monday to Friday is working days. For statutory purposes (notice periods, Working Time Regulations), Saturdays are considered working days, but Sundays and bank holidays are not. For business/financial purposes, Monday to Friday (excluding bank holidays) are business days. 

Is Saturday a business day in the UK? 

No. For banking, legal notices, financial transactions, and commercial contracts, business days are Monday to Friday, excluding bank holidays. Saturdays and Sundays are not business days. 

Is Saturday classed as a working day in the UK for holiday calculations? 

Yes, if Saturday is part of your normal working pattern, it is included in your holiday entitlement and holiday pay calculations. If you regularly work Saturdays, your holiday is calculated on a pro-rata basis, and the Saturday is treated as a working day. 

What are business days in the UK for employment purposes? 

For employment contracts, ‘business days’ typically means Monday to Friday, but check your employment contract. Some contracts may define business days differently, especially if your role involves international work. 

Do I get paid extra for working Saturdays in the UK? 

There is no legal requirement to pay extra. Payment is determined by your employment contract. Some employers offer enhanced rates for weekend work, but this is discretionary, not legally required. 

Can an employer require me to work Saturdays? 

Yes, if your contract includes Saturday as a working day or if reasonable overtime is a contractual term. If Saturday work is not in your contract, your employer cannot force you to work Saturdays without your agreement. 

Is Saturday counted as a working day for notice periods? 

Yes, for statutory notice periods, Saturdays are counted as working days (Sundays and bank holidays are not). This means a week’s notice starting on a Friday would include the following Saturday. Check your employment contract for any different definitions.