date to string conversion

when using the following code s value is prited as '00000'

Help me what the problem is.. dtntm field has date and time

aa=(DD_SlantSmoothTEC(j).dtntm);

aaa=datestr(aa);

s=strcat(aaa(1:2),aaa(4:6));

fn1=sprintf('%s%s','DD-VTEC Vs UT,HYDE-IISC PRN PAIR DAY ',s);

title(fn1);

[Stephen23]

Do NOT use the outdated, deprecated, imprecise DATESTR, DATEVEC, or DATENUM.

The DATESTR documentation states: "While datestr returns text representing dates and times, it is recommended that you use datetime values to represent points in time, and then convert them to text using the char, cellstr, or string functions."

Answer 1

[Stephen23]

Ugh, do NOT use DATESTR. This is easier without using the old, imprecise, deprecated functions:

aa = datetime('now','Format','ddMMM');
fn1 = sprintf('%s%s','DD-VTEC Vs UT,HYDE-IISC PRN PAIR DAY ',aa)

fn1 = 'DD-VTEC Vs UT,HYDE-IISC PRN PAIR DAY 27Dec'

[Adam Danz]

+1 yeah, don't use datestr....

Answer 2

[Adam Danz]

Assuming you want the date formatted as ddmmm ( see additional format options ),

aa = datetime('now')  % or aa = now() for double representation

aa = datetime
   27-Dec-2021 17:45:06

s = datestr(aa,'ddmmm')

s = '27Dec'

fn1 = sprintf('%s%s','DD-VTEC Vs UT,HYDE-IISC PRN PAIR DAY ',s)

fn1 = 'DD-VTEC Vs UT,HYDE-IISC PRN PAIR DAY 27Dec'

[Lakshmi Chodavarapu]

Many thanks to you all for helping and making me learn.

[Lakshmi Chodavarapu]

Able to succesfully save the files as requirded. Thanks agan for giving me a precious opportunity to learn.