@NonNull
    public static String formatShortDateTime(final long date) {
        return DateUtils.formatDateTime(getContext(), date, DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_SHOW_TIME | DateUtils.FORMAT_ABBREV_ALL);
    }
Generate a numeric date and time string according to system-wide settings (locale,
date format) such as "7 sept. at 12:35".

@param date milliseconds since the epoch
@return the formatted string
main/src/main/java/cgeo/geocaching/utils/Formatter.java