```
public final class TimeZoneKey
extends Object
```
Copied from the presto TimeZoneKey. It basically caches the Joda Chronologies corresponding to each of the timezones listed in the zone-index.properties The zone-index.properties is kept in sync with the presto zone index properties.

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(Object obj)`
`String`	`getId()`
`short`	`getKey()`
`static TimeZoneKey`	`getTimeZoneKey(String zoneId)`
`static Set<TimeZoneKey>`	`getTimeZoneKeys()`
`int`	`hashCode()`
`String`	`toString()`

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

public static final TimeZoneKey UTC_KEY

public static final short MAX_TIME_ZONE_KEY

public static Set<TimeZoneKey> getTimeZoneKeys()

public static TimeZoneKey getTimeZoneKey(String zoneId)

Modifier and Type	Field	Description
`static short`	`MAX_TIME_ZONE_KEY`
`static TimeZoneKey`	`UTC_KEY`

Class TimeZoneKey