You should plan to spend at least 4-5 days in Singapore if you want to see as much as possible. This would give you time to visit Singapore's iconic sites like the Merlion, Gardens by the Bay, and Marina Bay Sands, as well as explore its diverse neighborhoods like Chinatown, Little India, Kampong Glam, and Tiong Bahru.

Three days in Singapore is a good amount of time to get an overview of the city and see the highlights, but you could easily spend a week here. If you only have one day in Singapore, then pick and choose your favourite activities from the itinerary below—I recommend focusing on the Marina Bay area as it's so unique.

1. How many days are enough for Singapore and Malaysia? Here are some suggested trip lengths for visiting both Singapore and Malaysia: 5-7 days – This is enough time for quick trips to the major sights in Singapore (3-4 days) plus a few days in Kuala Lumpur, Malaysia.

Singapore is a pretty small city/country and is overall not hard to explore in a couple days. Unless you really want to immerse yourself in the city and get to know it really well, 2 days is the perfect amount of time to spend in Singapore.