Get current date in Java in GMT timezone

Posted on 25-04-2013 11:59 by graham
As is well known, there are two main date/time types in Java: java.util.Date and java.util.Calendar. While getting the current datetime with the Calendar data type is easy, doing the same using the Date type poses some problems.

Getting current GMT date using java.util.Calendar


The code to do this is simple:
Calendar currentGMTDate = Calendar.getInstance(TimeZone.getTimeZone("GMT"));


Getting current GMT date using java.util.Date


The problem with the Date data type is that it is always converted to the local time zone. To convert it to GMT time zone, we need to add/subtract the timezone offset from the result.

The following method returns the current date in GMT timezone.
@SuppressWarnings("deprecation")
public static Date getGMTTime()
{
Calendar c = new GregorianCalendar();
c.setTime(new Date());
c.add(Calendar.MINUTE, c.getTime().getTimezoneOffset());
return c.getTime();
}


NOTE: this implementation uses a deprecated method c.getTime().getTimezoneOffset().
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