It typically takes about 1 to 2 days to reserve a company name and another 1 to 2 days to complete the registration process with the Accounting and Corporate Regulatory Authority (ACRA) in Singapore. After the registration is approved, you will receive a Certificate of Incorporation, and your company will be officially established. However, the overall timeline can vary depending on factors such as the complexity of the company structure, the availability of required documents, and any additional approvals needed for specific business activities. Working with a professional service provider or incorporation service can help streamline the process set up a company and ensure compliance with all legal requirements.