Timestamp to time

[anh5kor]

Hello,

I getting a timesatamp from an Hardware and have to convert it in format (sss.zzz) where s is second and z is millsecond.
I tried with the format(h:m:sss.zzz) I am getting the correct data but I don't want minute to display it should be second and millisecond and it should be in 3 digit.
If I have a code

QTime time,time1;
    QString timeString = time.toString();
 
 time.setHMS(0,0,0,0);
time1 = time.addMSecs(Time_ecu2uss[1]);//where Time_ecu2uss[i] contain the timestamp
 timeString = time1.toString("m:ss.zzz");
qDebug()<<timeString ;

QTime time,time1;
    QString timeString = time.toString();

 time.setHMS(0,0,0,0);
time1 = time.addMSecs(Time_ecu2uss[1]);//where Time_ecu2uss[i] contain the timestamp
 timeString = time1.toString("m:ss.zzz");
qDebug()<<timeString ;

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It display the time in 0:00:000 format but I want in 000:000 format

I tired to display like below

QTime time,time1;
    QString timeString = time.toString();
 
 time.setHMS(0,0,0,0);
time1 = time.addMSecs(Time_ecu2uss[1]);//where Time_ecu2uss[i] contain the timestamp
 timeString = time1.toString("sss.zzz");
qDebug()<<timeString ;

QTime time,time1;
    QString timeString = time.toString();

 time.setHMS(0,0,0,0);
time1 = time.addMSecs(Time_ecu2uss[1]);//where Time_ecu2uss[i] contain the timestamp
 timeString = time1.toString("sss.zzz");
qDebug()<<timeString ;

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I am getting the format but wrong time.