It seems that there is an issue with typemax of dates and string representation
julia> using Dates julia> Dates.format(typemax( Date ),"yyyy-mm-dd" ) "1149-12-31" julia> typemax( Date ) 252522163911149-12-31 julia> Dates.format(typemax( Date ),"yyyyyyyyyyyyyyy-mm-dd" ) "252522163911149-12-31" This hidden truncation seems dangerous. Has anybody else seen this ?