Rainstorms are usually short and intense. Brunei notes are interchangeable with Singapore notes and are quite common. Shop hours vary, although Monday to Saturday from 9am to 6pm are the most common. Some department stores, Chinese Emporiums, and stores that cater solely to tourists stay open as late as 9pm seven days a week. Smoking Smoking is not permitted in public service vehicles, museums, libraries, lifts, theatres, cinemas, air-conditioned restaurants, hair salons, supermarkets, department stores and government offices.
Smoking is permitted in air-conditioned pubs, discos, karaoke bars and nightspots.
Singapore owes its sparkling clean streets to strict laws against littering and gum-chewing. Tipping standards Tipping is not very common in Singapore. Taxis are not tipped. On request, most hotels will provide transformers for appliances requiring different voltage. A visa is not required for U.S., European and Australian citizens for a stay of up to 14 days.