Customs & immigration
U.S. citizen and some members of the E.C.: Austria, Belgium, Denmark, Finland, Germany, Greece, Ireland, Italy, Netherlands, Norway, Portugal, Spain, Sweden and the United Kingdom do not need a visa.
Other nationalities please check website: Saint Martin entry requirements

Time zone:
5 hours in winter - 6 hours in summer (East coast of the United States)

Euro on the French side and U.S dollars on the Dutch side. However, the USD is widely accepted on the French side and most bars/restaurants will accept 1 euro/1 dollar for drinks at the bar as well as beach chairs and umbrellas.

Sint Maarten Entry Requirements: COVID-19

French is the official language on the French side but English is spoken everywhere.

Electricity & water:
220 Volts. Tap water is drinkable.

Airport information:
Sint Maarten / Saint Martin Airport site

You can find some information on Saint Martin on this site: Saint Martin Tourist Office