Java/Android-计算时间戳之间的差异 [英] Java / Android - Calculate difference between timestamps

问题描述

我在弄清楚如何计算两个时间戳(小时，分钟，秒)之间经过的时间时遇到问题.结果是:

I have a problem figuring out how to calculate the elapsed time between two timestamps (hours, minutes, seconds). This is the result:

String starttime = beginElement.getTimestamp();
String endtime = element.getTimestamp();

I/开始时间:1496258892612

I/Start time: 1496258892612

我/结束时间:1496258928999

I/End time: 1496258928999

long diffTime = Long.parseLong(endtime) - Long.parseLong(starttime);

I/Diff time:36387

I/Diff time: 36387

String elapsedtime = new SimpleDateFormat("hh:mm:ss").format(Long.parseLong(String.valueOf(diffTime)));

我/经过时间:01:00:36

I/Elapsed time: 01:00:36

实际上，经过时间仅为36秒.它总是比结果少一小时.

In fact, the elapsed time is just 36 seconds. It's always one hour less than the result.

如何解决这个奇怪的问题?

How do I fix this strange issue?

推荐答案

您使用的API错误，解析不是您所需要的，因为时间与日期无关，而与持续时间有关....

you are using the API incorrectly, parse is not what you need since that time is not related to a date but to a duration period instead....

做类似的事情:

String periodAsHH_MM_SS = String.format("%02d:%02d:%02d", 
        TimeUnit.MILLISECONDS.toHours(diffTime),
        TimeUnit.MILLISECONDS.toMinutes(diffTime) % TimeUnit.HOURS.toMinutes(1),
        TimeUnit.MILLISECONDS.toSeconds(diffTime) % TimeUnit.MINUTES.toSeconds(1));

System.out.println("Duration in hh:mm:ss is: "+periodAsHH_MM_SS);

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