Troubles with Matlab&Simulink input time format

Hi I have a time in format 123456.78 where 12 is hour, 34 minutes , 56 secounds and i need to get (12:34:56.78). I have tried to add ':' after every pair, but it didn't work. When i use datestr funcion, it give me back bad answer because datestr is working with day that means 1.5 = 12:00 can you help me please.

Answer 1

[Bozhidar Stoyanov]

Problem Solved :) M is matrix [x,1] where is the time in format 123456.78 (12:34:56.78) in every cell.

Date(1,12)=char(0);      
pom=(M(1,1)*100);
    if pom==0;
        x=datestr(pom,'HH:MM:SS.FFF');
    else
        pom=num2str(pom);
        x=cellstr(reshape(pom,2,[])');
        x=transpose(x);
        x=strjoin(x,{':',':','.'});
        x=datestr(x,'HH:MM:SS.FFF');
    end
Date(1,:)=x(1,:);

Answer 2

[Easwar Kumar Yarrabikki]

Hello This is how I deal with date and time in MATLAB,

Hope it will help you. it will give you date and time of that particular run.

you can change "_" to any symbol you want use, Either ":" or Some thing else .

   format = 'yyyy_mm_dd_HH_MM_SS';
   date_time = datestr(now, format)

[Bozhidar Stoyanov]

datestr is working with days like i say. I think its possible to find a constant with which I would multiply the fractional number and then use this function

>> formatOut = 'HH:MM:SS:FFF';
>> date_now = datestr(123758.16, formatOut)
date_now =
03:50:24:000
>> but the time is (123758.16) 12:37:58.16