Sunday Working & Christian Beliefs: Employer Obligations

Can Christians refuse to work on Sundays? A guide to Sunday observance, the Sabbath, and reasonable adjustments in the workplace.

The “Day of Rest” in a 24/7 Economy

For many Christians, Sunday is the Sabbath—a day dedicated to worship and rest. However, in retail, healthcare, hospitality, and emergency services, Sunday is often just another working day.

This conflict frequently leads to requests for reasonable adjustments: Christians asking to be permanently rostered off on Sundays.

Is Sunday Off a Legal Right?

Not automatically. There is no statutory right in UK law for Christians to have Sundays off (unlike the specific Sunday trading opt-out rights for identifying shop workers, which is a separate piece of legislation).

However, indirect discrimination applies. If an employer has a policy that “everyone must work weekends on rotation,” this puts Christians at a particular disadvantage compared to non-Christians.

The Legal Test

The employer must show that the requirement to work Sundays is a proportionate means of achieving a legitimate aim.

Legitimate Aim: “We need to staff the hospital/shop on Sundays.” (Valid)
Proportionate: “Do we really need this specific person? Could we swap their shifts? Is there a volunteer system?”

Key Case Law: Mba v Merton

In Mba v Mayor and Burgesses of the London Borough of Merton, a Christian care worker refused to work Sundays. The court acknowledged that while observing the Sabbath is a core Christian belief, it wasn’t an absolute right if the business couldn’t function without her.

Crucially: The employer had failed to fully explore whether other staff could cover the shifts. Just because it’s “inconvenient” to the employer doesn’t mean they can say no. They must show they tried to accommodate the request.

Reasonable Adjustments for Sunday Observance

If a Christian employee requests Sundays off, consider these steps:

Voluntary Registers: Can non-Christian staff (or those who happy to work Sundays for extra pay) cover these shifts?
Flexible Rostering: Can the employee work late evenings or Saturdays instead to make up the hours?
Partian Observance: If a full day off isn’t possible, can you guarantee they have Sunday mornings off for church services?

What is NOT Reasonable?

Forcing it on others: An employer does not have to force other unhappy employees to work every single Sunday just to accommodate one person, if it creates an unfair burden or causes other staff to leave.
Critical Roles: If a senior manager or specialist is the only person who can do the job on a Sunday, the request might be refused.

Summary

You don’t have to say “yes” to every request, but a flat “no” without investigating alternatives is likely unlawful. Treat Sunday observance as a significant religious need, not just a lifestyle preference.