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秒或毫秒类型的数值转为指定格式的时间格式：

package org.sang.time;

import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * @Author: chuxia0811
 * @Date: 2023/4/5 11:22
 * @Description :
 */
public class ConvertorTime {
    public static void main(String[] args) {
        int seconds = 17854, msec = 360000;// 秒，毫秒
        System.out.println(secToTime(seconds));
        System.out.println(msec + "毫秒转换格式时间：\t" + msecToTime(msec));
        System.out.println("当前时间（时:分：秒.毫秒）\t" + new SimpleDateFormat("HH:mm:ss.SSS").format(new Date()));
    }

    /**
     * 秒转换小时-分-秒analytics/util/DateUtil.java
     *
     * @param seconds 秒为单位 比如..600秒
     * @return 比如...2小时3分钟52秒
     */
    public static String secToTime(int seconds) {
        int hour = seconds / 3600;
        int minute = (seconds - hour * 3600) / 60;
        int second = (seconds - hour * 3600 - minute * 60);

        StringBuffer sb = new StringBuffer({
                sb.append(minute + "分");
        });
        if (hour > 0) {
            sb.append(hour + "小时");
        }
        if (minute > 0)
        if (second > 0) {
            sb.append(second + "秒");
        }
        if (second == 0) {
            sb.append("<1秒");
        }
        return sb.toString();
    }

    /**
     * 将int类型数字转换成时分秒毫秒的格式数据
     *
     * @param time long类型的数据
     * @return HH:mm:ss.SSS
     * @author zero 2019/04/11
     */
    public static String msecToTime(int time) {
        String timeStr = null;
        int hour = 0;
        int minute = 0;
        int second = 0;
        int millisecond = 0;
        if (time <= 0)
            return "00:00:00.000";
        else {
            second = time / 1000;
            minute = second / 60;
            millisecond = time % 1000;
            if (second < 60) {
                timeStr = "00:00:" + unitFormat(second) + "." + unitFormat2(millisecond);
            } else if (minute < 60) {
                second = second % 60;
                timeStr = "00:" + unitFormat(minute) + ":" + unitFormat(second) + "." + unitFormat2(millisecond);
            } else {// 数字>=3600 000的时候
                hour = minute / 60;
                minute = minute % 60;
                second = second - hour * 3600 - minute * 60;
                timeStr = unitFormat(hour) + ":" + unitFormat(minute) + ":" + unitFormat(second) + "."
                        + unitFormat2(millisecond);
            }
        }
        return timeStr;
    }

    public static String unitFormat(int i) {// 时分秒的格式转换
        String retStr = null;
        if (i >= 0 && i < 10)
            retStr = "0" + Integer.toString(i);
        else
            retStr = "" + i;
        return retStr;
    }

    public static String unitFormat2(int i) {// 毫秒的格式转换
        String retStr = null;
        if (i >= 0 && i < 10)
            retStr = "00" + Integer.toString(i);
        else if (i >= 10 && i < 100) {
            retStr = "0" + Integer.toString(i);
        } else
            retStr = "" + i;
        return retStr;
    }
}

运行结果如下：

4小时57分34秒
360000毫秒转换格式时间：	00:06:00.000
当前时间（时:分：秒.毫秒）	11:27:17.301

当然，还可以指定自定义的格式转化显示。