Java tutorial
import java.time.ZoneId; import java.util.HashMap; import java.util.Map; public class Main { public static void main(String[] args) { Map<String, String> map = new HashMap<String, String>(); map.put("Pacific", "America/Los_Angeles"); map.put("Mountain", "America/Denver"); map.put("Central", "America/Chicago"); map.put("Eastern", "America/New_York"); ZoneId.of("Mountain", map); } }