The job category "house servant" requires you to work within a family in a private residence. "House servants" work under different rules. Working in an office puts you under the category of "office janitor," not "house servant". You are right to say your employer is illegally denying your rights under the labor law as a janitor at a company.
 

Generally speaking, a worker is not expected to work more than eight hours a day, 48 hours a week. This can be adjusted with the consent of the Ministry of Labor in accordance with the law and depending on the type of work. Muslims work six-hour days during Ramadan. Commute time and prayer time are not included in the daily working hours — that is personal time. Workers are to receive time-and-a-half overtime salary, which means you get half of your hourly salary as overtime on top of your regular hourly salary. To calculate your hourly rate divide your annual salary by 365.25 and then divide that sum by eight to get your basic hourly wage.

For example, if you are paid SR48,000 per year, you divide that sum by 365.25 to get the daily wage (SR131.4) and then divide that by eight (SR16.4) to get your base hourly wage. You can then multiply your hourly wage by 1.5 to determine your overtime hourly wage. In this example your overtime hourly wage would be SR24.6.

Friday is typically the weekly day of rest, to coincide with the day of Juma prayer. Some jobs offer a half day on Thursday or a two-day Thursday-Friday weekend, but they are only required by law to give one day per week, which does not have to be a Friday. The important thing here is that employers are required generally to provide a day of rest for every six working days. (Some exceptions can apply for extenuating circumstances, but employers must compensate workers for that extra time, either as overtime or as a deferred day off owed to the employee.)

Employers must accommodate workers' religious obligations, but that time used is not counted toward the workers' daily shift.

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