时间戳 时分秒

public static StringBuffer change(int second){  
        int h = 0;  
        int d = 0;  
        int s = 0;  
        int temp = second%3600;  
             if(second>3600){  
               h= second/3600;  
                    if(temp!=0){  
               if(temp>60){  
               d = temp/60;  
            if(temp%60!=0){  
               s = temp%60;  
            }  
            }else{  
               s = temp;  
            }  
           }  
          }else{  
              d = second/60;  
           if(second%60!=0){  
              s = second%60;  
           }  
          }  
             
             StringBuffer str = new StringBuffer();
             str.append("完成充电剩余：");
             if(h!=0){
                 str.append(h+"小时");
             }
             if(d!=0){
                 str.append(d+"分钟");
             }
//             if(s!=0){
//                 str.append(s+"秒");
//             }


         return str;  
       }