Map<String, String> dimensions = new HashMap<String, String>();
dimensions.put("instant", "afterMatch");
trackEvent(EVENT_FRIENDS_ADD, dimensions);

/* .... */

public static void trackEvent(String evType, Map<String, String> evDim) {

        Date now = new Date();
        Map<String, String> commonDim = new HashMap<String, String>();
        commonDim.put("locale", GeneralUtils.getLanguageISO());
        commonDim.put("weekday", GeneralUtils.getWeekPeriod(now));
        commonDim.put("timeOfTheDay", GeneralUtils.getDayPeriod(now));

        if (evDim == null) evDim = new HashMap<String, String>();
        evDim.putAll(commonDim);

        ParseAnalytics.trackEvent(evType, evDim); // sometimes this throws the exception
}