@PostConstruct
	public void init() {
		timeZones = new ArrayList<>();
		final String[] timeZoneIds = TimeZone.getAvailableIDs();

		for (final String id : timeZoneIds) {
			if (id.matches(TIMEZONE_ID_PREFIXES) && !TimeZone.getTimeZone(id).getDisplayName().contains("GMT")) {
				timeZones.add(TimeZone.getTimeZone(id));
			}
		}

		timeZones.sort(comparing(TimeZone::getID));
	}
Home index page api controller.

@since 3.5.0
ngrinder-controller/src/main/java/org/ngrinder/home/controller/HomeApiController.java