The hours and shifts for a waiter/waitress depends on the opening hours of the restaurant. However, most restaurants are open during weekends and evenings. In many restaurants, workers are on a weekly rota and can change their shifts, giving them flexible hours. Some waitresses are on a full-time contract, which means they will be on the rota 35-40 hours/week. Working evenings and weekends can often result in higher tips.
For many restaurants, the personality of a waitress is more important than experience. Many hospitality employers provide their employees with necessary training. However, customer service experience is always a plus when applying for waitress jobs. If you lack experience but want to work in hospitality, an option is to start as a bar-back or food runner and work your way up.