datetime.ymd
datetime: [Y, M, D] = ymd (T)
Year, Month, and Day components of datetime array.
[Y, M, D] = ymd (T) returns the year,
month, and day components of the corresponding datetime values in T
as separate numeric arrays. Y, M, D contain integer
values and have the same size as T. Not-A-Time (NaT)
values in T are returned as NaN in the output arrays.
Source Code: datetime