| Field | Type | Default | Description |
|---|---|---|---|
| id | int (11) | NOT NULL | PRIMARY KEY - Auto increment field to hold unique ID |
| countries_iso_code_3 | char(3) | NULL | Holds the ISO code of the country where the zone is located. |
| zone_code | varchar(32) | NULL | Holds the abreviation o the zone (e.g. NY for new York) |
| zone_name | varchar(32) | NULL | Holds the full name of the zone. |