[Yuki Maru Hoshi]

I should also add accommodation is meant to work both ways. A person wouldn't decline to work Sundays (though that happens and can be honored) where some churches accommodate by being available at more days and times.

It has to be for perfectly legitimate reasons that makes sense why it is putting that person in a major conflict of conscience.

However, if an employer can't accommodate for perfectly legitimate reasons also, they can turn down employment altogether (generally). If a person needs to be on hand on Sundays and are in a management position, they're not going find an extra manager for one day. So they may have to change days and accommodate the employer.

In law enforcement, it wasn't possible to allow religious headwear for presentation\public-facing and safety reasons. Those rules were loosened by some agencies, but that restriction still wasn't considered a violation of personal freedoms where it simply wasn't practical.

Edit: Most of these things are worked out at hiring time here.