Ko Samui is located in Thailand (Amphoe Ko Samui, Surat Thani) and time zone Asia/Bangkok.
Places nearby are Ko Pha Ngan, Don Sak and Chaiya.
Hat Yai is 281 km away, Chon Buri is 429 km away and Samut Prakan is 450 km away as the crow flies.
Distances from Ko Samui to the most important cities in Thailand and the world.
Source: zeitverschiebung.net » Current Local Time » Ko Samui
9.5356700°
99.9356700°
Theory of stochastic processes
https://en.wikipedia.org/wiki/Kosambi–Karhunen–Loève_theorem