Greenwich mean time (GMT) is mean solar time at the Royal Greenwich Observatory in Greenwich, London, England, which by convention is at 0 degrees geographic longitude.
格林尼治国际标准以英国伦敦格林威治皇家天文台为准,也就是零经度为准。
Greenwich mean time (GMT) is mean solar time at the Royal Greenwich Observatory in Greenwich, London, England, which by convention is at 0 degrees geographic longitude.
格林尼治国际标准以英国伦敦格林威治皇家天文台为准,也就是零经度为准。
应用推荐