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by jeeceebees 2219 days ago
It's YYMM.ID I believe

Last year may was 1905.xxxxxx
2 comments
solveit 2219 days ago
Yep. This and the last year will be the only two confusing years for a century.
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lifeisstillgood 2219 days ago
aha. Why are they trying to save 2 bytes worth of space? Is it legacy ?
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