CODEWITHSUNDEEP
java
Abhishek Singh
Abhishek Singh

Reputation: 1517

Date conversion from 12:00:00 to 00:00:00 java

I want to convert:

 Tue Mar 28 12:00:00 IST 2016 time format
     INTO
 Tue Mar 28 00:00:00 IST 2016

How can I do it?

=================
Actually In the database, my date is saved with the format of "Tue Mar 28 00:00:00 IST 2016", I want to fetch this record using this date.but my following code

Calendar calendar = Calendar.getInstance();
        calendar.setTime(date);
        calendar.set(Calendar.HOUR, 0);
        calendar.set(Calendar.MINUTE, 0);
        calendar.set(Calendar.SECOND, 0);
        calendar.clear(Calendar.MILLISECOND);
        return calendar.getTime();

but this is giving me Tue Mar 28 12:00:00 IST 2016, whereas I want Mar 28 00:00:00 IST 2016, So that it would be same as Database one, and will fetch.

Upvotes: 1

Views: 1555

Answers (3)

Alex Salauyou
Alex Salauyou

Reputation: 14348

You need Calendar.HOUR_OF_DAY constant, which is used to operate in 24-hour clock, instead of Calendar.HOUR:

Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.set(Calendar.HOUR_OF_DAY, 0); // <-- here
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
calendar.clear(Calendar.MILLISECOND);

Upvotes: 2

Adam Rice
Adam Rice

Reputation: 890

I think the OP wants to format the 24H time to 12H.

Try something like this:

SimpleDateFormat formatDate = new SimpleDateFormat("hh:mm a");

Upvotes: 0

Darshan Mehta
Darshan Mehta

Reputation: 30839

You can just add 12 hours to date object, with calendar, e.g.:

SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
Date date = format.parse("2016-03-28");
System.out.println(date);
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.add(Calendar.HOUR, 12);
System.out.println(calendar.getTime());

Upvotes: 1

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