Employers have been advised to accommodate the religious requirements of workers in order to avoid charges of discrimination.
According to law firm DWF, greater harmony in the work place would also be created if employers make simple changes to a workers routine without damaging the interests of their businesses.
The advice comes as Ramadan is set to take place from September 13th to October 11th, in which Muslims fast from dusk to dawn.
Allowing flexible working through shift rotas, extra time off to pray at sunset and encouraging workplace integration by allowing meal breaks at dusk are among the measures recommended by DWF partner Jon Keeble.
Employers need only to be flexible about the holiday entitlement and break periods of their employees and can accommodate religious practices without compromising their businesses and allowing extra time off, he said.
"Most employers are unaware that discrimination on the grounds of religion is against the law," Me Keeble added.
According to the government's Central Office of Information, employers are liable to charges of indirect discrimination, "whether or not it's done on purpose", if they disadvantage an employee through work policy as a result of their religion or belief.
Mr Keeble noted that scheduling important business meetings at dusk would be an example of indirect discrimination against Muslim workers during Ramadan.
