Ships Companies Ports Documents Distances FAQ Contacts Cambodia Time: GMT +7. International dialling code: +855. Territorial waters: Limit of 12nm claimed for territorial waters and a limit of 200nm for an exclusive economic zone. Capital city: Phnom Penh. PORT LATITUDE LONGITUDE REMARK UNCTAD TIME ZONE MAX DRAFT MAIN PORT DETAILS Kompong Som 10° 38.0' N 103° 30.0' E Port Open KHKOS GMT +7 8.50   Details Phnom-Penh 11° 35.0' N 104° 55.0' E Port Open KHPNH GMT +7 4.20   Details Pointe du Depart 10° 43.0' N 103° 32.0' E Sub Port   GMT +7   Kompong Som Details Sihanoukville 10° 38.0' N 103° 30.0' E Alt Name KHKOS GMT +7   Kompong Som Details