guó jì rì qī biàn gēng xiàn
international date line
国
guó
country; nation; state
际
jì
border
日
rì
abbr. for 日本[Ri4 ben3], Japan
期
qī
variant of 期[qi1]
变
biàn
to change
更
gēng
to change or replace
线
xiàn
variant of 線|线[xian4]