Heard Island and McDonald Islands

Introduction

Heard Island and McDonald Islands is located in Antarctica, with its capital being uninhabited and the official language being English.

Australian dollar is the legal tender of Heard Island and McDonald Islands. The top-level domain of Heard Island and McDonald Islands is .hm, and to make an overseas call to Heard Island and McDonald Islands, you need to add + / 00 before the number.

The IANA time zone of Heard Island and McDonald Islands is Indian/Kerguelen. The local time is 3 hours ahead compared to Beijing time. On 2025-12-29, the sunrise time in Heard Island and McDonald Islands's capital uninhabited is 03:41, and the sunset time is 20:34.

Heard Island and McDonald Islands

Heard Island and the MacDonald Islands are an external territory of Australia located in the Southern Indian Ocean, approximately 4,100 kilometers to the southwest of Australia, making it one of the most remote human settlements in the world. The archipelago was formed by volcanic activity and includes a unique geological landscape of active volcanoes, lava landscapes and glaciers. Virtually unsettled, they preserve an intact sub-Antarctic ecosystem and are home to millions of species of seabirds (e.g., penguins, albatrosses) and marine mammals, and are listed as a UNESCO World Natural Heritage Site. Due to its pristine nature and ecological value, the archipelago is only open to limited scientific research activities and is important for the study of climate change and biodiversity.