Annual leave
Article 29 of Federal Decree-Law No. 33 of 2021 gives an employee with one year or more of service not less than 30 days of paid annual leave for each year. An employee with more than six months and less than one year of service gets two days for each month. Leave for part of a year is proportional, and the Executive Regulations let an employee carry forward no more than half of the annual leave, or take a cash allowance by agreement. A part-time employee's leave is pro-rated by hours, with a minimum of five working days a year.
Leave salary on leaving
When employment ends, accrued leave that has not been taken is paid. The payout is calculated according to the basic wage. The calculator therefore multiplies unused days by the daily basic wage, taken as the monthly basic wage divided by 30. For leave that is actually taken, the law refers to "the wage for the period of the leave", and the official text does not say whether that is basic or total wage, so read your contract for that case.
Sick leave
After the probation period, an employee may take up to 90 days of sick leave in a year, continuous or not: the first 15 days with full pay, the next 30 days with half pay and the remaining period unpaid. There is no paid sick leave during probation, the employee must notify the employer within three working days and provide a medical report, and no pay is due where the sickness results from misconduct as set out in the Executive Regulations.
Other leave, briefly
The law also provides maternity leave of 60 days, parental leave of 5 working days, bereavement leave of 5 days for a spouse and 3 days for close relatives, and study leave of 10 working days a year after two years of service. Hajj leave is described on the government portal as unpaid, up to 30 days, once during employment. Ask MOHRE for the details of each case.