Every day is a shopping day in Singapore, as the city is a well-established retail mecca. Most malls and department stores are open daily from 10 a.m. well into the evening. (The Mustafa Centre in Little India operates round-the-clock!) If shopping is the primary purpose for your trip, consider timing your visit to coincide with the Great Singapore Sale, which runs for several weeks during the middle of the year and features hefty discounts in stores across the city.
Orchard Road, particularly at its junction with Scotts Road, is the place to start -- and possibly finish. It offers a vast array of retailers, such as the Tangs department store and the fantastic Kinokuniya, a vast bookstore that's the most comprehensive in Singapore. Popular shopping centers also include the Wisma Atria and Ngee Ann City. The latter houses the Japanese department store Takashimaya (which even has a department of London's famed Harrods); the food court on the basement level is a great place for lunch and people-watching.
For those seeking something a little different from the usual malls and Western imports, other fun places to shop include the bustling markets of Little India, Chinatown and Arab Street.