Java tutorial
//package com.java2s; import java.text.ParsePosition; import java.text.SimpleDateFormat; import java.util.Date; import android.text.format.DateUtils; public class Main { public static String timeAgo(String iso8601) { SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ"); ParsePosition position = new ParsePosition(0); Date date = null; try { date = simpleDateFormat.parse(iso8601.replaceFirst("Z", "+00:00"), position); } catch (Exception e) { System.out.println("could not parese date"); } String timeAgo = date == null ? "" : DateUtils.getRelativeTimeSpanString(date.getTime()).toString(); return timeAgo; } }