How do I get a list of all TimeZones Ids using Java 8?

To retrieve a list of all available time zones ids we can call the java.time.ZoneId static method getAvailableZoneIds(). This method return a Set of string of all zone ids. The format of the zone id are “{area}/{city}”. You can use these ids of string to create the ZoneId object using the ZoneId.of() static method.

package org.kodejava.datetime;

import java.time.ZoneId;
import java.time.format.TextStyle;
import java.util.Locale;
import java.util.Set;

public class GetAllTimeZoneIds {
    public static void main(String[] args) {
        Set<String> zoneIds = ZoneId.getAvailableZoneIds();
        for (String id : zoneIds) {
            ZoneId zoneId = ZoneId.of(id);
            System.out.println("id          = " + id);
            System.out.println("displayName = " +
                    zoneId.getDisplayName(TextStyle.FULL, Locale.US));
        }
    }
}

Here are some zone IDs printed out to the console:

id          = Asia/Aden
displayName = Arabian Time
id          = America/Cuiaba
displayName = Amazon Time
id          = Etc/GMT+9
displayName = GMT-9:00
id          = Etc/GMT+8
displayName = GMT-8:00
id          = Africa/Nairobi
displayName = Eastern Africa Time
...
...
...
id          = Europe/Nicosia
displayName = Eastern European Time
id          = Pacific/Guadalcanal
displayName = Solomon Is. Time
id          = Europe/Athens
displayName = Eastern European Time
id          = US/Pacific
displayName = Pacific Time
id          = Europe/Monaco
displayName = Central European Time

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Wayan

Founder at Kode Java

A programmer, runner and recreational diver, lives on the island of Bali, Indonesia. Programming in Java, Spring Framework, Hibernate / JPA, MySQL. To support me working on this project, buy me a cup of coffee, every little bit helps. Thank you.

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