datetime.yyyymmdd
datetime: D = yyyymmdd (T)
Convert datetime array to YYYYMMDD numeric form.
D = yyyymmdd (T) returns a double array
D of the same size as T in which each element encodes the
date of the corresponding datetime as year * 10000 +
month * 100 + day. The time of day is ignored. Not-A-Time
(NaT) values are returned as NaN.
Source Code: datetime
yyyymmdd packs the date into one number as year*10000 + month*100 + day; the time of day is ignored.
t = datetime (2024, 3, 9, 6, 0, 0)
t = datetime 09-Mar-2024 06:00:00
yyyymmdd (t)
ans = 2.0240e+07