Singapore Traveller Tips : General Tips when visiting Singapore

General Info
Clothing
Due to the heat and humidity in Singapore, loose and light summer clothing pieces are highly recommended for everyone wanting to visit Singapore, and be able to enjoy it fully.
If you're here on business, the smart casual attire of long-sleeved or short-sleeved shirts or blouses and trousers and skirts are usually acceptable unless you are attending a formal business dinner or when specified on an invitation card. Suits and ties are optional for business meetings, although still recommended.
Electricity
The voltage in Singapore is 220-240 volts AC, 50 cycles per second. Most hotels provide transformers and adapters on request. Otherwise, you should find one easily at most general stores. You should not spend more than S$15 for a converter.
Language
English is widely spoken and written here in Singapore. It is the language of business and study. All signs and instructions here are also in English. Other local languages include Mandarin, Malay and Tamil depending on their races and dialects.


Postal Services
Singapore Post operates a network of outlets conveniently located around the island. Offering a wide range of postal, telecommunication and agency services, most of these outlets are open Monday through Friday, from 8.30am to 5pm and until 1pm on Saturday. For more information, call 1605.
Telecommunication
In Singapore, there are three service providers Singapore Telecom (SingTel), M1 and Starhub supporting 2 mobile networks of GSM 900 and GSM 1800.
Payphones are abundant here. To make either a local or international call, you can use most pay phones which are operated by credit-cards or stored-value phone cards.
Payphones charge 10 cents per block of 3 minutes for a local call and accepting coins in various denominations from 10cents to 50cents. Stored-value phonecards, which are more convenient, come in denominations of S$2, S$5, S$10, S$20, and S$50 and are obtainable from any post office and most convenience stores.
To make an international call, dial the access code followed by the country code, area code and telephone number. Different service providers use different access codes.

1. SingTel’s IDD code is 001, 013 and 019,
2. M1’s IDD code is 002 and 021
3. StarHub’s IDD code is 008 and 018.

Singapore’s country code is 65. There is no city code for Singapore.
International Calling Cards in denominations of S$10, S$20 and S$50 are widely available at post office, including outlets at Changi Airport and 7-11 stores, and convenience stores.
Time
Singapore is eight hours ahead of Greenwich Mean Time (GMT). It lies in the same time zone as Brunei Darussalam, Malaysia, Philippines, Hong Kong, China, Taiwan and Perth (Western Australia).

Tipping
Tipping is not expected in Singapore. It is prohibited at the airport and discouraged at hotels and restaurants where there is a 10% service charge.