Converting gps week/seconds

Question

Hi all -
i am working on a project that requires me to convert the GPS week number and GPS seconds to the current day and time.
I will be glad if can some one help me with the skeleton structure of the algorithm?
Thanks in advance.

Answer 1

Hi -
This is the code that I wrote. Ready to compile. I hope it is clear.
The gps week = 1283 which is the current week.
The gps sec = 229015 is the no. of seconds elapsed this week.
These numbers should give me the date and time as
Aug-10-2004 15:37:55 [i dont worry about the seconds] Thanks,
import java.lang.*;
import java.util.*;
public class Hello {
    public static void main(String[] args){
        int week=1283; //gps week
        int sec=229015; //gps seconds
        GregorianCalendar gc1 = new GregorianCalendar(1980,Calendar.JANUARY,6,0,0,0);
        GregorianCalendar c = new GregorianCalendar();
        long elaps = gc1.getTimeInMillis();
        System.out.println("Elapsed seconds: " + elaps);
        long time = elaps + week*7*24*3600*1000 + sec*1000;
        System.out.println("Time  "+ time);
        Date javaDate = new Date(time);
        c.setTime(javaDate);
        System.out.print(c.get(Calendar.MONTH));
        System.out.print("-"+c.get(Calendar.DATE));
        System.out.print("-" + c.get(Calendar.YEAR));
        System.out.print(" "+ c.get(Calendar.HOUR));
        System.out.print(":" + c.get(Calendar.MINUTE));
        System.out.print(":" + c.get(Calendar.SECOND));
}