DateFormat

Add gradle to build.gradle

build.gradle

implementation 'si.virag:fuzzydateformatter:1.1.0'

Converting date to string

SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'");

    Date date = new Date();
    String dateTime = dateFormat.format(date);

Converting string to date

MainActivity.java

String dtStart = "2019-03-15T09:27:37Z";
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'");
try {
    date = format.parse(dtStart);
    System.out.println(date);
    String text = FuzzyDateTimeFormatter.getTimeAgo(MainActivity.this, date);
} catch (ParseException e) {
    e.printStackTrace();
}