Converting datenum to days

I'm doing some data interpretation and I want to convert the output that I'm getting to days. How exactly do I do this?

Answer 1

[Star Strider]

The output of datenum are whole days to the left of the decimal separator (as the number of days from January 0, 0000), and fractions of a day to the right. You can get other details about the days using the appropriate datetime (link) functions.

Example —

dn = now                                                    % Date Number
dt = datetime(dn, 'ConvertFrom','datenum')                  % Corresponding ‘datetime’ Object
daynr = day(dt)                                             % Day Of The Month
dayyr = day(dt, 'dayofyear')                                % Day Of The Year    

dn =
          737187.560337454

dt = 
   07-May-2018 13:26:53

daynr =
     7

dayyr =
   127