Chamorro Standard Time is the time zone in United Statesorganized territory of Guam, as well as parts of the Northern Mariana Islands, including Saipan, Rota, and Tinian. It is UTC + 10 hours. This zone, located in the Western Pacific Ocean, keeps the same time as Australian Eastern Standard Time. In the history of the United States, an organized territory is a territory for which the United States Congress has enacted an Organic Act. ... Saipan seen from the air A map of Saipan, Tinian & Aquijan Saipan (IPA: in English) is the largest island and site of the capital of the United States Commonwealth of the Northern Mariana Islands, a chain of 15 tropical islands in the western Pacific Ocean (15°10â51âN, 145... Look up rota in Wiktionary, the free dictionary. ... Saipan, Tinian & Aguiguan (Click to enlarge) Tinian is one of the three principal islands of the Commonwealth of the Northern Marianas Islands (14°59â51âN, 145°37â39âE). ... ... Time Zone is also a historical computer game. ...