GPS-time in Android

Question

I'm looking for a way to display GPS-time in my app. What is the easiest way to do this?

(It has to be GPS-time due to slight time differences between gps time and internal system time)

Thanks

Answer 1

Whenever you receive a fix from the GPS, the method onLocationChanged is called. The parameter to this method is an instance of Location. One of the methods of this parameter is getTime which will give you what you are looking for. That is if I got right what you are looking for. Read more here

Answer 2

I came across a description of the getTime function that says this:

public long getTime () Return the UTC time of this fix, in milliseconds since January 1, 1970. Note that the UTC time on a device is not monotonic: it can jump forwards or backwards unpredictably.

Yikes! Is that true? Even if it does indeed return a time object that includes the milliseconds value that value is TOTALLY USELESS if it "can jump forwards or backwards unpredictably".

The project that I'm working on absolutely needs an "accurate to the millisecond" time value (even if it's "milliseconds since January 1, 1970"). WIthout that accuracy, I'm screwed!