Standard Earth Year
出自星際公民中文百科
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A Standard Earth Year (SEY) ( Banu: yiWa; ) is part of the Standard Earth Time (SET) mandated standard for tracking time in the 地球聯合帝國. It demarks the unit of time matching period of rotation of 地球 around its sun, Sol. Also used for time in dates.
See also
- SXY, a Standard Xi'an Year