Your holiday entitlement is determined by the law and your contract.
By law you are entitled to 5.6 weeks’ paid holiday a year (known as statutory leave entitlement or annual leave). An employer can include bank holidays as part of statutory annual leave.
Most workers who work a 5-day week must receive 28 days’ paid annual leave per year. This is calculated by multiplying a normal week (5 days) by the annual entitlement of 5.6 weeks.
Part-time workers are also entitled to a minimum of 5.6 weeks of paid holiday each year, although this may amount to fewer actual days of paid holiday than a full-time worker would get. (eg A worker works 3 days a week. Their leave is calculated by multiplying 3 by 5.6, which comes to 16.8 days of annual paid leave).
Rules regarding when you can take annual leave are governed by your contract and/or company handbook.
Where Usdaw has an agreement with a company, workers may be entitled to more than the statutory minimum. Any problems with claiming or booking holidays should be reported to your rep.