How to convert a timestamp to years, month, days and hours in Android?-CodePudding

I want to convert a timestamp like 62207486144 to days(like 1 year 6 months 2 days 3 hours 33 minutes) in my Android App. How can I do that? I am able to get days and hours but not years or months with the following code-

Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(62207486144);
GregorianCalendar gregorianCalendar = new GregorianCalendar();
gregorianCalendar.setTime(calendar.getTime());

long timestamp = 62207486144;

long days = TimeUnit.MILLISECONDS.toDays(timestamp );

timestamp -= TimeUnit.DAYS.toMillis(days);

long hours = TimeUnit.MILLISECONDS.toHours(timestamp );

CodePudding user response：

Years- divide days by 365 (or 365.25 if you want to account for leap years). Months- well, months aren't exact because months aren't the same length, but dividing by 30 is going to be about right.

Your code above is a bit odd though. The first 4 lines are doing something totally different than the last 4. The first 4 would get you data about a specific time in a timestamp- you'd use that if you wanted to figure out for a timestamp what day/month/year it was. The last 4 treat it as a duration. You'd use that for figuring out how long something took. My suggestion above works for durations. If you want to know when a particular timestamp was instead, you'd just use the calendar object to tell you that.

CodePudding user response：

check this out, as an easy way to convert to localDateTime. From there, it should be way easier.

long millis = 62207486144L;
LocalDateTime date = Instant.ofEpochMilli(millis).atZone(ZoneId.systemDefault()).toLocalDateTime();
date.getDayOfMonth(); //Day
date.getMonthValue(); //Month
date.getYear(); //Year

More information here: https://howtoprogram.xyz/2017/02/11/convert-milliseconds-localdatetime-java/