Time is eternal , but methods of tracking it are not - and so a johns hopkins university astronomer wants to replace the gregorian calendar , with its leap years and floating dates and 15th-century effluvia , with a sleek and standardized system for the world .

时间是永恒唯一的，但是记录时间的方式却并非只有一种约翰霍普金斯大学的天文学家利用闰年、浮动日期和在15世纪就已经废除的历法来制定一个新的世界标准替代格林尼治时间。