zero is not defined on DateTime360Day

[rafaqz]

On DateTime zero works:

julia> zero(DateTime)
0 milliseconds

But on CFTime.DateTime360Day (and maybe other types here?) it fails:

julia> zero(CFTime.DateTime360Day)
ERROR: MethodError: no method matching zero(::Type{DateTime360Day})
The function `zero` exists, but no method is defined for this combination of argument types.   

Closest candidates are:
  zero(::Type{Union{}}, Any...)
   @ Base number.jl:310
  zero(::Type{Time})
   @ Dates C:\Users\rafael.schouten\.julia\juliaup\julia-1.11.2+0.x64.w64.mingw32\share\julia\stdlib\v1.11\Dates\src\types.jl:460
  zero(::Type{LibGit2.GitHash})
   @ LibGit2 C:\Users\rafael.schouten\.julia\juliaup\julia-1.11.2+0.x64.w64.mingw32\share\julia\stdlib\v1.11\LibGit2\src\oid.jl:221
  ...

Stacktrace:
 [1] top-level scope
   @ REPL[7]:1

Should it just return Millisecond(0) ?