|
Venezuela uses the UTC−04:30 time offset, commonly called ''Venezuelan Standard Time'' (VET) and legally referred to as ''Hora Legal de Venezuela'' (HLV) or Venezuela's Legal Time. The HLV is administered by the Navigation and Hydrography Service, in the Cagigal Naval Observatory, Caracas. Until December 30, 2007, 06:59.59 UTC, Venezuela used the UTC−04:00 timezone. The official time zone of Venezuela is determined by meridian 67° 30' west of Greenwich, UK. This meridian divides the country into two almost symmetrical areas and represents a −4:30 hour offset from Greenwich Mean Time (meridian 0°). UTC−4:30 was formerly the official time zone in Venezuela from 1912 to 1965, when the government changed it in order to adopt meridian 60° (UTC−4), which passes through Punta de Playa, Delta Amacuro State. ==Background== The Venezuela's Legal Time Service was founded in answer to the need of a standard time across the country, located approximately between meridians 60° W and 75° W, corresponding to UTC−04:00 and UTC-5:00 with respect to the prime meridian. In 1912, the meridian 67° 30' W was adopted as the first geographical reference for a national time system. The HLV was given to the National Telegraphy Central Office as an astronomical time standard, corresponding to GMT-4:30. During the 1930s, the broadcasting services began time reports synchronized with the HLV. In 1965 the Republic of Venezuela Congress established meridian 60° W, near Punta de Playa in Delta Amacuro state, as official, since the previous one did not fulfill the international requirement for time standards of being based on integer differences with the GMT. Beginning then, Venezuela Standard Time was UTC-4:00, this meant the addition of thirty additional minutes to the previous time.〔 This modification was carried out based on a research from the company ''La Electricidad de Caracas''. The results indicated that adding thirty minutes to the previous time would save energy use since all morning activities were going to be carried out in the presence of sunlight, and there would be an additional half an hour of sunlight in the afternoons. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Time in Venezuela」の詳細全文を読む スポンサード リンク
|