Conversion of Unix time to GMT

Question

Does anyone know of a way in which I can turn a date in unix time (no. of seconds since 1st Jan 1970) into a standard GMT format?
Any help would be greatly appreciated.
Thanks!

Answer 1

To use GMT time, use TimeZone:
* UnixTime.java
* Created on February 16, 2006, 11:20 AM
* @author Charles Li
import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.TimeZone;
public class UnixTime {
    public static void main(String[] args) {
        GregorianCalendar gc = new GregorianCalendar(TimeZone.getTimeZone("GMT+0"));
        long unixTime = 1234567890L; // unix time is second
        long ONE_SECOND = 1000L; // 1 second = 1000 millisecond
        gc.setTimeInMillis(unixTime*ONE_SECOND);
        // 2009/2/13
        System.out.println("Year: " + gc.get(Calendar.YEAR));
        System.out.println("Month: " + (gc.get(Calendar.MONTH)+1));
        System.out.println("Day: " + gc.get(Calendar.DAY_OF_MONTH));
}