java – How to correctly convert seconds to HH: mm: ss format?


I get the duration of a video from VK in seconds. I just can't translate them into HH: mm: ss format

Here is my method

public String secToStr(int duration){
    SimpleDateFormat df = new SimpleDateFormat("hh:mm:ss");
    String time = df.format(new Date(duration));
    return time;

Any duration translates to 3 hours. What am I doing wrong? How can you do this in two or three lines?


Understood. This is how it should be

public String secToStr(int duration){
    return String.format("%02d:%02d:%02d", duration / 3600, duration / 60 % 60, duration % 60);
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