According to the information listed in the Singapore Traffic Police website, “A foreigner holding a valid foreign licence may drive in Singapore for a period of not more than 12 months. A Singapore driving licence is required after 12 months. Those on short-term social visit may drive with their foreign licence. For licences not written in English language, an International Driving Permit or an official translation in English language is required.”
If your driver licence is issued outside of Singapore, please check with the Singapore Traffic Police if you need to convert your foreign driving licence to a Singapore driving licence. We suggest that you refer to this web page for details and latest updates provided by the Singapore Police Force on Traffic Matters.